I think they'll play the OL the same for the entire game, so much inexperience you don't really have the luxury (imo) of bringing in other players. Trey needs more snaps, as does Morris/Wright.
I don't think this staff will play it by quarters, it'll be series. I'd give JG the first 2 or 3 series, and hopefully he produces 14 or more points. The defense should be able to truly dominate UTC and force turnovers/punts. Slide in JT with the first team (hopefully with a series or 2 in the first half). And then with a padded lead in the 2nd half start to work in more reps for the 2nd level of skill guys.
I want to see lots of Jones, Tillman, Keyton, and Beasley (if still at RB) in the 2nd half.