a factor listed in this subpart, departure from the applicable guideline range is warranted only if the factor is present to a degree substantially in excess of that which ordinarily is involved in the offense. U.S.S.G. § 5K2.0, p.s. Indeed, we have recognized the possibility of departure beyond the adjustments made available by U.S.S.G. §§ 3B1.1 (aggravating role) and 3B1.2 (mitigating role), based upon a defendant’s extraordinary role with respect to the offense of conviction. See United States v. Joyner, 924 F.2d 454, 461 (2d Cir.1991) (acknowledging possibility of role “so extraordinarily minute that [defendants] deserved a departure beyond the four-level maximum reduction available for ‘minimal’ participation”); United States v. Colon, 905 F.2d 580, 585-86 (2d Cir.1990) (<HOLDING>); cf. United States v. Bierley, 922 F.2d 1061,
recognizing that where there are other persons who are criminally responsible for the offense who have not been apprehended or have not been charged due to cooperation a sole defendant may be eligible for an upward or downward adjustment for role in the offense holding that within these parameters apprendi permits an upward adjustment for a defendants role in a drugtrafficking conspiracy recognizing potential upward adjustment beyond that provided by guidelines for aggravating role in the offense holding that role in the offense is a factual determination albeit complex a district courts decision not to apply an adjustment based on such a determination is reversed only for clear error holding that a defendant convicted of a soleparticipant offense may nonetheless be entitled to a mitigating role adjustment