A. Warren Moon was a statue
B. Steve Young was pretty good...and mobile
C. Elway was uber- mobile and a fantastic athlete.
D. Rothlisberger moves around in the pocket better than most .
E. Even the epitome of a statue, Joe Flacco, made the biggest throws of the playoffs after moving up in the pocket.
I guess my point is: all great QBs know when it's time to stay and when it's time to go. Even the most statuesque pocket passers, the great ones that is, know how to slide to clean air.
I think the new breed will be good at both. Newton, Luck, Wilson and Kaepernick can throw with the best of them and run when necessary.