I remember watch The Brady play later in his NFL career. You could see his mind working: "OK, this guy is blitzing so the hot route is that guy right there." even with a very poor offensive line the physics of getting 180 to 300 pound bodies up and moving toward the quarterback are unforgiving. Brady had such a command of the offense that there are times he didn't need an offensive line at all the ball was gone so quickly.I disagree. Even before Ty's injuries the running game wasn't good at all, and Ty was getting hit regularly early in the season. He was just able to work around the issues on the OL to some extent, and as teams got more and more film to watch they took advantage of the OL's weaknesses. The coaches and OL couldn't adjust to cover the weaknesses.
The upshot for Bama is Bama got a first-time starting quarterback, so that level of mastery of the offense is just not gonna be there. Ty had a pretty good command of the offense, and knew how to get rid of the ball quickly, but he still got blown up from time to time.