For what it's worth, I do think there is something to the Vets being able to prepare for a season better then a Rookie. Typically, Rookies don't understand the grind of the season. They don't know how to prepare for it the way vets do. They haven't had the advantage of a full off season and lastly, they usually aren't fully developed from a physical standpoint. Now physically, Peterson might be an exception to this last but, it's still relivant IMO. I do think there is something to Vets preparing for a season better because they are Vets. JMO