Generally agree with that (more for next year though).  But the other thing to keep in mind is that the window for this D to potentially win another SB as long as the O is at least average but doesn't turn the ball over much is still open.  They need to be better than last year, of course.  And probably even better than the SB year (unless they get super-hot at just the right time again). 

What they don't want is a throw-away year where we turn the ball over a lot just trying to groom Paxton.  Trevor might be able to give them a "good but not great" year without turning the ball over much.  Paxton, well, far less optimistic about getting that from him.