and to some extent his feet, and if they have success with this, that will help open up the run game.  Zach won't still be rehabbing his arm in late August/September, he'll be back to full strength long before that, so expect to see what he can do the first 4 games.  Counting on the two graduate transfers to start or even play significantly in September may be expecting too much.  They'll need to learn the playbook and know who and be willing to block, and expecting them to be able to do that game one may be expecting too much.  Expecting them to contribute more as the season progresses is more realistic.