what different purpose of institutional orderliness, a distinction evidenced by our insistence that, in the absence of intervening Supreme Court precedent, one panel cannot overturn another panel, regardless of how wrong the earlier panel decision may seem to be. Equally significant, drawing too fine a distinction here would invite further confusion in an already troubled subject. We then bow to R.A. G.S. but urge that it be overturned en banc.
Ill
To the extent R.A.G.S. decided the issue, we are now persuaded that the court should change course in order faithfully to serve congressional purpose. And our task is just that. As the Sedima Court observed, the Senate Report focused on the meaning of pattern:
The target of [RICO] is thus not sporadic activity. The infiltration of legitimate business normally requires more than one “racketeering activity” and the threat of continuing activity to be effective. It is this factor of continuity plus relationship which combines to produce a pattern. S.Rep. No. 91-617, p. 158 (1969). (emphasis added).
105 S.Ct. 3285 n. 14. As we see it, a single robbery of a bank cannot be made into a pattern by pointing to a mailing and a phone call (such as to distract bank employees by giving false information). Rather, such acts are preparatory to the single offense of bank robbery. It is when a first robbery is preceded by discrete illegal acts separate in the sense that they are not simply preparatory acts or a second robbery is accomplished that the possibility of a pattern is raised.
It bears emphasis, however, that we describe acts preparatory to a discrete accomplishment. In doing so, we are not concerned that our reading of pattern invites unwarranted escape from RICO by a semantical game of generalizing the illegal objective, such as, suggesting in our bank robbery example that the objective was the robbing of banks, or to use a common example, suggesting that a series of drug transactions are only part of the single offense of drug distribution. There are several discrete criminal events in such cases. Such a generalized objective is indistinguishable from the very criminal enterprise the Act was plainly intended to reach.
In concluding that acts preparatory to the accomplishment of a discrete offense do not form a pattern of racketeering activity, we are supported by virtually every circuit confronting the issue. International Data Bank Ltd. v. Zepkin, 812 F.2d 149, 154-55 (4th Cir.1987); Marks v. Pannell Kerr Forster, 811 F.2d 1108, 1110 (7th Cir.1987); Torwest DBC, Inc. v. Dick, 810 F.2d 925, 929 (10th Cir.1987); Schreiber Distributing v. Serv-Well Furniture Co., 806 F.2d 1393, 1399 (9th Cir.1986); Deviries v. Prudential-Bache Securities, Inc., 805 F.2d 326, 329 (8th Cir.1986); cf. United States v. Ianniello, 808 F.2d 184, 189-92 (2d Cir.1986); Bank of America National Trust & Savings Association v. Touche Ross & Company, 782 F.2d 966, 971 (11th Cir.1986). As the Tenth Circuit put it:
A scheme to achieve a single discrete objective does not of itself create a threat of on-going activity, even when that goal is pursued by multiple illegal acts, because the scheme ends when the purpose is accomplished.
Torwest DBC, 810 F.2d at 929. But R.A.G.S. blocks this path.
IV
In any event, we are persuaded that plaintiffs’ complaint failed to allege an “association in fact” enterprise. Because the existence of an enterprise is an essential element of a RICO claim, 18 U.S.C. § 1962(c), the district court properly dismissed the complaint.
In Atkinson v. Anadarko Bank & Trust Co., 808 F.2d 438 (5th Cir.1987), we held that to establish an association in fact enterprise, the plaintiff must show “evidence of an ongoing organization, formal or informal, and ... evidence that the various associates function as a continuing unit.” Id. at 440 (quoting United States v. Turkette, 452 U.S. 576, 583, 101 S.Ct. 2524, 2528, 69 L.Ed.2d 246 (1981); Shaffer v.