'Asked how Kelly differs from Bills coach Rex Ryan, McCoy said: "They're way different. Way, way different . . . I think it's the small things. Rex is more worried about playing football. The way you wear your hat or the way you wear your jeans, or the different socks you wear, he don't care about that. As long as a player does his job, he don't care about that type stuff. He wants to win games. The rules for the team are to play with respect and to constantly play for the logo on the helmet. And that's all he cares about.'