re: Ware + Blue + Ford + Hilliard > Richardson + Lacy

I dont really think the question is of the totality of quality in the lineups. 2 players of R & L's quality are not going to "tire out" in the 4th quarter. The difference will be in the play calling and the OL's execution. Each of the backs above given the right call with perfect blocking will execute. The problem is the high quality of each defender will not usually allow for every offensive lineman to achieve their goal on the same play. Therefore, the coaches that have the correct gameplan and are able to quickly modify their plans to overcome the opponent will be more successful than the later. In reality, these will probably cancel out and the winner will be the one that gets the fumble or has a successful trick play.