TAMPA — It is one-and-done for USF junior running back Darrell Scott, who said Tuesday he is forgoing his senior year with the Bulls to enter the NFL draft.Scott rushed for a team-best 814 yards last season, but his best numbers came in September against lighter competition, with all six of his touchdowns coming in wins against Ball State, Florida A&M and UTEP. In eight games against BCS league competition, Scott did not rush for more than 100 yards and did not score.Scott, who played one season for USF after transferring from Colorado, is USF's third early-entry draft pick in as many years, following defensive end Jason Pierre-Paul and receiver Carlton Mitchell in 2010. Scott has an NFL body at 6 feet 1, 239 pounds, but was limited by injuries in Big East play.USF coach Skip Holtz addressed Scott's decision on Twitter.com, posting a simple "Good Luck Darrell Scott." Holtz hasn't had an underclassman who played for him leave for the NFL draft since Raghib "Rocket" Ismail at Notre Dame in 1991, when Holtz was wide receivers coach under his father, Lou.Scott's departure means USF will lean heavily on rising senior Demetris Murray and junior Marcus Shaw in 2012. Murray rushed for 503 yards and a team-best eight touchdowns in 2011, while Shaw had 38 yards in limited action.Senior Victor Marc, who worked primarily at receiver last season, could see more time in the backfield as well.Greg Auman can be reached at [email protected] and at (813) 226-3346.