I know where you are coming from amigo and I know it's early, but you have to like the fact that everything about the football team (hired coaches, systems, who is doing what) is coming from the head coach's mouth instead of drunken GM
Parcells actually let Zimmer keep the 4-3 his first two years. After that good yr in 2003, the defense was a train wreck in 2004 and right after the season is when Parcells announced he was changing to the 3-4 and everybody on the staff would have to get on board with it.
We'll see I guess, but yesterdays announcement about the playcalling duties and basic offensive system info (no terminology changes) would lead one to believe that Prescott might indeed be in an evaluation year.