Zach is simply much more dynamic from the shotgun where he can see the field, move around, and even incorporate RPOs. I agree that BYU will try to run the ball first and foremost but it'll be more like Oregon, in that they'll spread teams out in order to exploit 6 man boxes. But in addition, the passing game is just so much more dynamic with Bushman, Hifo, etc. out in space in the spread vs in more pro style alignments.