re: The most impressive thing about 264 yards rushing

I agree with most of your premise, but I think you're confusing "worn down" with out of breath, as opposed to muscle fatigue by being pushed on for 50 times a game and fighting to push back. Offensive linemen who are much larger are in a more advantageous position to wear down the legs of the defensive players who are not only trying to push back, but push away, read keys, chase down running backs. That's what ground and pound does...not make them winded.