sentences:  USC assistant head coach Steve Sarkisian, considered to be the front runner for the position, withdrew his name from consideration on January 19.On January 22, the team announced the hiring of 31-year-old USC offensive coordinator Lane Kiffin, the youngest coach in franchise history and the youngest coach in the NFL.Kiffin's first staffing hire was former Atlanta Falcons offensive coordinator Greg Knapp, who accepted the same position in Oakland on January 28.