 On March 15, 2012, defensive end and former first-overall pick Mario Williams, formerly of the Houston Texans, signed a six-year contract with the Bills worth up to $100 million ($49.5 million guaranteed), which made it the most lucrative contract for a defensive player in NFL history at the time.Unfortunately, it was not enough to prevent another disappointing season in 2012 in which the Bills finished 6–10 again.Following the season, the Bills relieved Chan Gailey and his entire coaching staff of their duties.