Oh you mean like the standard language included in most contracts about abiding by NCAA rules and being subject to termination for cause if NCAA rules are violated? Kidding. Sort of. Maybe not?
This is a pretty ridiculous statement. Go back and watch some of the games from early in the season. Warren was all over the field doing everything asked of him (repeatedly blocking for the QB, getting downfield to block for receivers). What was rarely asked of him was to run the ball. Rewatch the KSU game. Without his downfield fumble recovery (can't remember which receiver of ours fumbled), and without him carrying half the KSU defense for 4 yards to get into the endzone after running into our shitty OL 2 yards behind the LOS, we don't win that game. For whatever reason the coaches clearly favored Porter, but their preference certainly wasn't based on in game performance.
I don't fault Warren for leaving and wish him the best of luck.