Why Doug Marrone left the Bills in 2014 after a 9-7 season, Buffalo’s first winning record in a decade, is one of the great mysteries of the NFL’s recent history. Marrone, who was hired by Buffalo in 2013 after four seasons at Syracuse, won’t say, and neither will members of the Bills brass from 2014, including former general manager Doug Whaley. We can say with confidence there was no love lost between Marrone and many in the organization, with numerous Buffalo staffers and players going on and off the record to trash Marrone’s organizational chops on his way out the door.