who has final say on who plays?

[DCbillsfan]

So McCoy hurts his hammy in practice and as fans we don't know the real extent of the injury. Some gamesmanship the rest of the week by the Bills and I agree with it. Do the Bills have that little faith in Gillislee et al to play McCoy who isn't healthy? I would hope that Rex would have the stones to tell a star player that he's not playing/starting for the better of the team. Not playing McCoy today would have been tough call but maybe the right one. We certainly need him for NE.