Marshall Faulk is joining head coach Deion Sanders at Colorado, giving the Buffaloes three members of the Pro Football Hall of Fame on its coaching staff.Sanders and Faulk were 2011 inductees in Canton, with Warren Sapp joining them in 2013.Sapp is the Buffaloes’ senior quality control analyst on defense. Faulk will coach the running backs and will be tasked with improving a running game that ranked 134th in the nation with 65.1 yards per game.Faulk brings a lengthy resume to his role as running backs coach at Colorado.He was a first-team All-American three times at San Diego State and is a member of the College Football Hall of Fame.