Whenever I see a player fail to do his job on the football field, I think of this Herman Boone quote:
We will be perfect in every aspect of the game. You drop a pass, you run a mile. You miss a blocking assignment, you run a mile. You fumble the football, and I will break my foot off in your John Brown hind parts and then you will run a mile. Perfection. Let's go to work.
My internet research* doesn’t give me any evidence that the real Coach Boone said this quote, but Denzel Washington did when he portrayed him in Remember the Titans.