Peyton Manning's leadership could absolutely transition to coaching, right? Wrong. You see, Manning is a perfectionist. And because of that, Tony Dungy -- who coached Manning for seven seasons in Indianapolis -- doesn't ...
via http://nesn.com/2012/12/tony-dungy-doesnt-think-peyton-manning-could-ever-be-nfl-coach-because-of-quarterbacks-crazy-work-ethic/