I agree, he's not a bad player, but remember that he was picked #2 overall in the entire draft.
I'm sorry, but having the #2 draft pick overall and selecting a guy who turned out to be a flanker back that can't carry the ball 20 times a game, and will have to be the #3 RB on your depth chart, is a bust to me. #2 overall should be a lot more of a player on your offense than a 3rd string, change of pace back.