Defendant's cocaine possession sentence is affirmed where: 1) for a U.S.S.G. section 3E1.1(b) reduction, the government must first determine that defendant assisted authorities by entering a timely guilty plea, the government must file a motion with the court to that effect, and then the court must decide that the defendant meets the section 3E1.1(b) criteria; and 2) the district court kept its considerations to those contained in section 3E1.1(b) -- the efficient use of the government's and the court's resources and the timeliness of the plea.