Opinion for the Court filed by Circuit Judge ROBINSON.
Concurring Opinion filed by Circuit Judge STARR.
SPOTTSWOOD W. ROBINSON, III, Circuit Judge:
On this appeal — his second1 — Wagner complains of the District Court’s denial of his motion seeking a preliminary injunction restraining his employer, the Interstate Commerce Commission (ICC), from alleged discrimination against its black professional, administrative, and technical employees graded GS-9 and above.2 This disposition was predicated upon a simultaneous ruling, which Wagner also challenges, rejecting his motion for certification of those employees as a class on whose behalf permanent injunctive relief of that type could be sought.3 For the reasons articulated herein, we affirm.
I. Background
Since the proceedings in the District Court will be examined in detail as further discussion warrants, an overview suffices here. Wagner is a black ICC employee in [582]*582the senior executive service.4 Originally hired by ICC as a senior trial attorney in 1978, he left after approximately eighteen months to work elsewhere, but was rehired by ICC in August, 1980, as Deputy Director for Enforcement in the agency’s Office of Compliance and Consumer Assistance.5
Wagner has encountered a number of problems at ICC which he attributes to racial discrimination. During the course of this litigation, he has alleged that when he was first hired he was not allowed to select certain subordinates;6 that later he was not permitted to exert the powers of his office to discipline a white employee;7 that he was investigated on an anonymous informant’s false charge of bribery;8 that he was not promoted when he might otherwise have been;9 that he has been unfairly rated; 10 and that his supervisory authority has been undermined.11 Wagner has also charged more broadly that he has suffered from a general pattern and practice of racial discrimination at ICC.12
These claims — individual to Wagner —have not been developed before the District Court.13 His initial pleading in the case, denominated a “class action complaint,” 14 cited instances of alleged discrimination against Wagner,15 but its averments were primarily of ICC’s treatment of its black employees as a group,16 and it requested declaratory and injunctive relief on behalf of the class rather than for Wagner alone.17 Wagner moved for class certi[583]*583fication shortly after his suit was brought.18
Wagner’s complaint and his motion for class certification alleged widespread discrimination against black workers at ICC— in hiring, promotion, and other terms and conditions of employment — in violation of Title VII of the Civil Rights Act of 1964.19 Wagner asked for certification of a plaintiff class composed of all black professional, technical and administrative employees in positions graded GS-9 and above, and all black applicants for those positions.20 After completion of discovery, Wagner supplemented his class-certification motion with a citation of discrimination complaints filed in ICC’s equal employment office and with statistics on black representation in the upper echelons of the agency.21
While the District Court was considering the request for class certification, ICC discharged Thomas Wilson, a black GS-12 contract specialist within the class that Wagner hoped to represent.22 Wagner then moved for a preliminary injunction23 charging that he was fired because of his complaints to ICC of racial discrimination.24 Wagner sought an order reinstating Wilson, enjoining ICC from reprisals against Wagner and other potential class members, and affording relief insuring an environment free from reprisal.25 ICC opposed the motion, asserting that Wagner had no standing to represent Wilson,26 and that in any event Wilson had not been discharged [584]*584improperly.27
The District Court issued two separate orders. One denied Wagner’s motion for certification and ordered that the action proceed solely on Wagner’s individual claims.28 Accompanying this order was a memorandum explaining the basis for the court’s action.29 The second order rejected the motion for preliminary injunction on the ground that Wagner, in consequence of the first order, had no standing to seek relief on behalf of the class.30
Wagner has appealed from both orders.31 ICC argues that we have no jurisdiction to consider the issue on class certification,32 and urges affirmance of the ruling on the sought-after injunction.33
II. Jurisdiction
We must, at the outset, determine whether we have power to consider the District Court’s disposition of Wagner’s motion for class certification. We hold that we do, for review of the court’s refusal of the preliminary injunction — a review we clearly are authorized to conduct — requires us to first ascertain whether Wagner’s suit can proceed as a class action rather than simply on an individual basis.
Federal appellate jurisdiction vis-avis district courts extends primarily to “final decisions” of those courts.34 But Congress has ordained exceptions to this proposition, premised on the need of litigants “to effectually challenge interlocutory orders of serious, perhaps irreparable, consequence.”35 Since the statutory exception relevant here — Section 1292(a)(1) — specifically confers jurisdiction upon the courts of appeals to review interlocutory orders refusing injunctions,36 our authority to examine the District Court’s rejection of Wagner’s motion for preliminary injunctive relief cannot be doubted.37
What remains in dispute, then, is whether we may also consider the court’s denial of class certification.38 The Supreme Court has made clear that an order withholding class certification, standing alone, is not appealable.39 The Court, how[585]*585ever, expressly left open the question whether a concomitant withholding of both class certification and preliminary injunc-tive relief provides a foundation for an immediate appeal,40 and the issue has not heretofore been precisely resolved in this circuit. We are faced with the need to do so now, and in evaluating the relevant case-law, we are mindful of the Court’s admonition that Section 1292(a) must be “approach[ed] ... somewhat gingerly lest a floodgate be opened that brings into the exception many pretrial orders.” 41
A canvass of the numerous decisions addressing the scope of review under that section reveals substantial unanimity that a statutorily-authorized appeal from an interlocutory order may open the door to examination of another order not otherwise then appealable.42 One of the many holdings illustrating this judicial course is our own in Energy Action Educational Foundation v. Andrus,43 where we deemed appropriate, on an appeal from a refusal to issue a preliminary injunction, consideration of the denial of a motion for summary judgment.44 We stated that
“[rjeview quite properly extends to all matters inextricably bound up with the remedial decision_ [T]he scope of review may extend further to allow disposition of all matters appropriately raised by the record, including entry of final judgment. Jurisdiction of the interlocutory appeal is in large measure jurisdiction to deal with all aspects of the case that have been sufficiently illuminated to enable decision by the court of appeals without further trial court development.” 45
We cautioned, however, that decision of other aspects of the case must be restricted to those “closely related” to the subject of the interlocutory appeal authorized.46
Other circuits have echoed the view that the reviewing court may address issues that are “inextricably intertwined”47 or “substantially interdependent”48 with an [586]*586appealable interlocutory order.49 Some of the circuits have held specifically that a denial of class certification may be investigated on an appeal from action taken on a motion for a preliminary injunction;50 and that, we think, is as it should be. Indeed, when the availability of provisional relief is as tightly interwoven into the fabric of class certification as it is in the case at bar, a narrower construction of Section 1292(a)(1) would impinge upon the congres-sionally conferred right to an interlocutory appeal from the refusal of an injunction.51
We believe, then, that we have both the power and the duty to review the District Court’s class-certification order as well as its order on the motion for a preliminary injunction. That court expressly rejected the motion solely “in light of” its contemporaneous denial of class certification.52 Without review of the determination on class certification, effective review of the order on the injunction request would be seriously impaired. We have, then, a matter — class certification — “inextricably bound up with the remedial decision” 53 — the ruling on preliminary injunc-tive relief — which is properly before us under Section 1292(a)(1). We turn accordingly to an examination of the District Court’s action on Wagner’s motion for class certification.
III. Class Certification
A. General Considerations
Without a doubt, the District Court is “uniquely well situated” to make rulings on the propriety of class certification.54 Nonetheless, it remains our responsibility to review those rulings carefully and to rectify any erroneous application of legal criteria and any abuse of discretion.55 With this limited role in mind, we proceed to consider the District Court’s rejection of [587]*587Wagner’s motion.56
It is readily apparent that a decision on class certification cannot be made in a vacuum. While, of course, a court does not possess “any authority to conduct a preliminary inquiry into the merits of a suit in order to determine whether it may be maintained as a class action,” 57 it is evident that some inspection of the circumstances of the case is essential to determine whether the prerequisites of Federal Civil Rule 2358 have been met.59 Necessarily, the court must examine both the claims presented and the showing in support of class certification for their adherence to the requirements of Rule 23.60
[588]*588Rule 2361 inquiries in the context of Title YII racial discrimination suits have presented courts with a peculiar set of problems. These stem from the fact, as stated by the Supreme Court, that “racial discrimination is by definition class discrimination.” 62 Recognition of this fact has left uncertain the degree of permissiveness tolerable in applying the requirements of Rule 23 in Title VII litigation, and has promoted a difference of opinion as to the proper standard for certifying Title VII classes.
At one point many courts adopted the “across-the-board” approach to Title VII class certification. By this technique, any case featuring a proposed class composed of all members of a minority group connected in some fashion with a particular employer is deemed to present common questions of law or fact, regardless of individual variations in terms of discriminatory practices suffered or injuries sustained, merely by virtue of an allegation that racial discrimination had occurred.63 These courts thus permitted a named plaintiff in one job category to represent employees in another job category, or a discharged employee to represent current employees, reasoning that although different members of the class may have been harmed in different ways, “the ‘Damoclean threat of a racially discriminatory policy hangs over the racial class [and] is a question of fact common to all members of the class.’ ”64
More recently, however, the Supreme Court warned that careful attention to the [589]*589requirements of Rule 23 “remains nonetheless indispensable” in Title VII class actions.65 Even more lately, and more importantly, in General Telephone Company v. Falcon,66 the Court held erroneous the certification of a class combining disappointed Mexican-American job applicants allegedly victimized by discrimination in hiring practices with current Mexican-American employees allegedly suffering from discrimination in promotions, and in the terms and conditions of their employment. The Court said:
[Plaintiff's] complaint provided an insufficient basis for concluding that the adjudication of his claim of discrimination in promotion would require the decision of any common question concerning the failure of petitioner to hire more Mexican-Americans_ If one allegation of spe-
cific discriminatory treatment were sufficient to support an across-the-board attack, every Title VII case would be a potential company-wide class action. We find nothing in the statute to indicate that Congress intended to authorize such a wholesale expansion of class-action litigation.67
“The mere fact,” the Court added, “that an aggrieved private plaintiff is a member of an identifiable class of persons of the same race or national origin is insufficient to establish his standing to litigate on their behalf all possible claims of discrimination against a common employer.”68
What the Court demands from those seeking certification of a class cutting across employment status or job categories is a “specific presentation” identifying the questions of law or fact common to the class representative and the members of the class proposed.69 The Court has identified two qualifying presentations, the first involving an employer who used a biased testing procedure to evaluate both applicants for employment and incumbent employees seeking promotions, and the second attacking an employer whose general policy of discrimination manifested itself in hiring and promotion in the same general manner, such as through entirely subjective decisionmaking processes.70 Significant proof of either practice, then, should assure certification of a class containing both actual and potential employees.
Moreover, while in Falcon the Supreme Court emphasized the controlling effect of Rule 23(a) standards to Title VII class actions, it clearly did not foreclose all across-the-board class certifications, nor did it suggest that determinations thereon should turn on the skill with which pertinent allegations in the pleadings are crafted. The fact that the complaint of a plaintiff aspiring for the post of class representative is cast in terms too broad to satisfy Falcon's prescriptions hardly justifies outright disapproval of class status while further effort holds out some discernible prospect of achieving compliance. It may be possible, for example, for the plaintiff to accumulate through discovery the information needed to make a “specific presentation” incorporating the elements called for by Rule 28.71 Additionally, the situation may prompt the District Court to exercise its broad discretion to redefine and reshape the proposed class to the point that it qualifies for certi[590]*590fication under Rule 23. As in all class actions of other types, the court in a Title VII case can narrow the definition of the class,72 divide the proposed class into subclasses 73 and permit class members to opt out of the class,74 as may be warranted by the circumstances. In this manner, and without adversely affecting persons who will be bound by the ultimate decision, the court can remain faithful to the fundamental purpose of Title VII to stamp out employment discrimination, though it impacts the interests of more than the particular complainant.75
In reviewing the District Court’s decision in this case, we look to Wagner’s allegations, and to the presentation he made in the District Court in support of his motion for class certification, in order to determine whether the motion was correctly evaluated in light of Rule 23(a)’s insistence upon commonality, typicality and adequacy of representation.76 We address, in turn, each of these requirements, and the District Court’s rulings thereon.
A. Typicality
The District Court held that Wagner’s promotional discrimination claims were not typical of those of the class he desired to represent.77 The court based this finding on the fact that Wagner, as a member of the Senior Executive Service, was subject to ratings and promotional criteria different from those of the regular general schedule employees who made up the proposed class.78 The court also found that Wagner’s inability to win promotion to high-level one-of-a-kind positions in the agency was not representative of promotional disappointments that had been suffered by lower-graded members of the class.79 The court concluded that Wagner’s “experience as a successful attorney and member of the elite SES is ‘hardly typical of the widespread acts of discrimination he wishes to attack on behalf of the [591]*591class.’ ”80
To be sure, these factors show that Wagner is not a typical ICC employee, but they do not necessarily establish that his claims of promotional discrimination are atypical of those of the class. Courts have held that typicality is not destroyed merely by “factual variations.”81 As one court has put it, “the fact that the jobs performed by the named plaintiffs are, in some sense, unique, is not a bar to their being class representatives. If it were, no class of professional employees could ever be certified.” 82
We conclude that the uniqueness of Wagner’s position does not become the determining factor when the proposed class is tested by the typicality requirement. We thus reject the proposition that Wagner’s high position alone renders his claims against ICC atypical of those of the class. We hold that in assaying the results of an application of that requirement to the case at bar, the court must consider whether Wagner suffered injury from a specific discriminatory promotional practice of the employer in the same manner that the members of the proposed class did, and whether Wagner and the class members were injured in the same fashion by a general policy of employment discrimination.83
One of Wagner’s claims is that ICC’s performance evaluations are conducted in a discriminatory manner, producing a disproportionate share of low ratings for black employees. Wagner avers that he has himself applied for and been refused promotions84 and that his chances for future promotion are dim because of his race.85 Along with other ICC employees, Wagner is subject to performance analy-ses,86 and is exposed to possible adverse consequences if the results of the analyses are lowered for discriminatory reasons.87 Though Wagner is a member of an “elite” service,88 he has an interest, like all other members of the class, in being fairly evaluated. If Wagner’s allegations are true, his individual claim of promotional discrimination is typical of the claims of those who would comprise the proposed class.
The District Court also felt that Wagner would not be a suitable representative of the class because, it said, his experience with ICC has been objectively favorable.89 The court’s memorandum opinion noted that Wagner was a “successful attorney” and declared that it would be inappropriate for him to represent employees who had not been promoted.90 The real question, however, is not whether Wagner has been “successful” but whether progress toward even greater success in his professional career has been impeded by reason of his race. If performance evaluations are discriminatory, Wagner has been hurt in the same way that any other member of the proposed class has, whether “successful” or not. We conclude that the District Court focused upon the wrong aspects of [592]*592Wagner’s position and achievements in ruling that his claims are not typical of those of the proposed class.
B. Commonality
The District Court found additionally that Wagner did not meet the commonality requirement of Rule 23(a), in part because the court anticipated that different methods of proof would be utilized in any effort to establish the individual and the class claims. Proof of Wagner’s personal claims, the court assumed, would be attempted by analysis of his qualifications in relation to those of other more favorably treated employees,91 while the class claims would primarily involve “statistical analy-ses of ICC’s practices supplemented with scattered examples of alleged misconduct.”92 “When such divergent methods of proof of individual versus class claims are involved,” the court said, “courts have held that there are not enough common questions of law or fact to satisfy the commonality and typicality requirements of Rule 23.”93
The District Court’s approach misconceives the nature of the evidence aeceptable in a Title VII disparate-treatment class action such as Wagner’s, and thus distorts an application of the test for commonality. An action of that kind — the so-called “pattern or practice” suit — requires proof that the treatment challenged as discriminatory was a “standard operating procedure — the regular rather than the unusual practice.” 94 The plaintiff can establish a prima facie case of discriminatory conduct without demonstrating that each class member is the victim of the discriminatory practice.95 Statistical evidence, for example, may suffice if the disparities in treatment are significant.96
The major role played by statistical evidence in these cases, however, does not preclude resort to proof of individual instances of discrimination. Ofttimes, class plaintiffs offer a combination of statistics and testimony of particular instances of discrimination in the effort to prove the claims of the class.97 The Supreme Court in one such case observed that “[t]he individuals who testified about their personal experiences with the company brought the cold numbers convincingly to life.”98
[593]*593Far from disqualifying a proposed class from certification, disparate methods of demonstrating discrimination are commonplace in Title YII actions of this type. Indeed, it is hard to imagine how it could be otherwise. Employees are unlikely to undertake a Title VII class action unless they feel that they themselves have encountered discriminatory treatment. When it comes to whether the proposed class meets the commonality requirement of Rule 23(a), the mere fact that the undertaking involves evidence of both individual and class discrimination is not determinative one way or the other.
The Supreme Court’s decision in Falcon is not to the contrary. The would-be class plaintiff there prosecuted an action charging discriminatory practices in hiring and promotion,99 but produced only individualized evidence with respect to promotions and only classwide evidence on hiring.100 The Court merely pointed out that proof of promotional discrimination against a particular individual would not suffice to establish a prima facie case of promotional discrimination classwide.101 The Court did not rule out the possibility of disparate-treatment suits encompassing both individual and class claims, but simply demanded stricter adherence to the requirements of Rule 23(a) prior to certification of the class.102
What remains for determination, then, is whether a finding of commonality
in the present case is foreclosed for some other reason. Wagner asked the District Court to certify a class consisting of disappointed applicants and of employees who eventually were fired, denied promotions, or discriminated against in the terms and conditions of their employment.103 He asserted that the common question of law or fact was “the common threat of discrimination that confronts all members of the class.”104 However, the foregoing discussion makes clear that this allegation, standing alone, is insufficient to establish among members of the proposed class the commonality mandated by Rule 23(a).105
Wagner also presented statistics indicating that the ICC’s workforce is racially unbalanced. Again, his effort fell short of the mark. Statistics laying bare a racially unbalanced workforce do not make out a prima facie case of disparate treatment absent further evidence drawing comparisons with the relevant labor market.106 Much less do they show a policy of discrimination manifested in the employer’s promotional practices.107
Wagner attempted, however, to overcome this deficiency by offering statistics purporting to demonstrate that black employees at ICC have traditionally been assigned a disproportionate share of low performance ratings.108 This, if true, would identify a discriminatory practice that has retarded the promotion of black employees [594]*594as a class.109 Moreover, these statistics would appear to raise a common question of fact — whether ICC has engaged in a systematic practice of keeping performance ratings of black employees at an artificially low level.110
Presentation by a hopeful class plaintiff of ostensibly significant statistics is not the end of the inquiry, however. A court ruling on a class-certification motion must examine the plaintiffs offering and make an initial determination that there is at least a plausible fit between the coverage of the proposed class and the group to which the statistics relate. Thus, figures on performance ratings do not forge a connection between current employees and disappointed job applicants. The existence of some common practices, such as subjective decisionmaking,111 can form the nexus between employees and applicants,112 but Wagner has not alleged the existence of such a practice common to both groups. This difficulty could likely be overcome by confining the class to current employees.113 The District Court could then properly consider whether such a narrowed class would otherwise satisfy the requirements of Rule 23.
In the case before us, however, the effect of this obstacle is compounded by Wagner’s failure to establish a correlation between even this narrowed class and the statistics on performance evaluations that favor his claim. It is unclear from the record whether any of the proffered statistics pertain to Wagner’s proposed class of employees graded GS-9 and above. Wagner’s own analysis of the figures obscures rather than clarifies the issue; his list of conclusions furnishes merely a fragmentary picture which makes it difficult to comprehend the situation facing members of his proposed class as a whole.114 Plaintiffs seeking class certification are not required to prove the merits of their cases, but their presentations must be specific enough to allow the court to discern at least a rough outline of a class that properly can be certified.
While the statistics relating to an identifiable promotional practice of ICC implied at least the possibility of common questions of fact, Wagner has not identified such a question, nor does one appear from the record. Instead of assembling bits of evidence into a coherent question of possible [595]*595employer misconduct, he left the District Court with a combination of broad conclu-sory allegations of widespread discrimination and a jumble of numbers. Clearly, his presentation on this point has failed.
C. Adequacy of Representation
The District Court held that Wagner was unsuitable as a class representative in two respects. First, though a supervisor, Wagner seeks to include nonsupervi-sory personnel within the class, and the court found that their interests have been and likely will continue to be antagonistic to those of class members who are supervisors.115 Second, the District Court further found that Wagner’s counsel had not properly handled the class action,116 and that Wagner had improperly appeared pro se before the court.117
The District Court’s first point raises a serious question about the adequacy of Wagner’s continued maintenance of the suit as the class representative. As a supervisor, Wagner has interests that, as the court noted, have already clashed with those of other members of the class envisioned.118 Supervisory employees are often inappropriate representatives of nonsuper-visory employees because the structure of the workplace tends to cultivate distinctly different interests between the two groups.119 Although each group shares the interest in freedom from discrimination, potential conflicts may and do arise within a class including both.120 In the instant case, supervisors who are members of the proposed class have been responsible for evaluating the performances of other members of the class;121 indeed, the very individual on whose behalf injunctive relief is sought in this case122 was allegedly discharged by a black employee who is a potential member of the class.123 Additionally, Wagner has accused his own supervisor, who is a potential class member, of racial discrimination against Wagner himself.124 These problems perhaps could be mitigated by a further narrowing of the class, but, taken in combination with another point now to be discussed, they add to the doubt concerning Wagner’s suitability to manage the class action.
The District Court also found Wagner to be an inappropriate class representative for reasons arising from the prosecution of the present suit. Wagner had three different attorneys and, in addition, has represented himself in the District Court and acted pro se in this court. Wagner and one of these attorneys have filed affidavits as class members,125 and, as the District Court pointed out, this has raised substantial conflict-of-interest questions implicating the propriety of Wagner to serve as class rep[596]*596resentative.126 Like the District Court, we think Wagner has thus failed to establish the propriety of his representation of the proposed class. While Wagner’s problems possibly could be overcome by retention of new counsel, for the class, the District Court’s experience with Wagner’s three attorneys and his current pro se status could hardly leave room for a contention that the District Court abused its discretion or otherwise committed reversible error.
IV. Conclusion
Wagner does not satisfy the requirements of Rule 23 for class certification. Accordingly, the District Court did not err in denying Wagner’s motion for class certification and, on that account, his request for a preliminary injunction on behalf of his proposed class. The orders under review are hereby
Affirmed.