I'll concede that maybe he's in somewhat better physical condition, but isn't a guy who is overweight by twenty or so pounds (in a contract year) the very definition of out-of-shape? He may have better wind, but he's not as fast nor as quick as he would be, nor could he run for as long.

I say that a guy who isn't in top physical condition in a contract year is not a good bet to be motivated once he's got the contract. I think he's the best running back the Packers have had since Ahman Green, but he's no Ahman Green. In his heyday, Green was a monster - and a fast monster.