“From an offensive tackle standpoint, there was a lot of quick-set/short-set blocking schemes in pass protection, meaning instead of a kick-step back and the tackle meeting a rusher at an angle three yards back, you fire out and attack him so he doesn’t get into his move, like you see in play-action passes,” Harris said. “The problem with that is it makes it an angle situation. Because if the pass rushers’ get-off is good, your angle as a tackle is beat and you’re beat. That’s why you saw (Zion) Nelson with his shoulders turned so much because he would go out to quick-set and the guys, he was trying to block were exploding off the ball, which means he had to turn.
“When you kick-step back, and basically wait for them to come to you, that’s when you use your hands, your leverage. Nelson has long arms. If Justice comes in and works on Nelson’s kick-step, uses his punch, gets his hands on people, he’ll be a lot better.”
I don't claim to be any type of offensive expert (or defensive for that matter), but is the reason they don't drop b/c of the recentish college football rules allowing Olinemen to be up to 3 yards in front of the LOS and RPOs? That by dropping back you either 1) give away that it is a pass allowing the LBs to drop back or 2) make it very difficult to run since you are allowing the Dline to crash in?