I'm not an RB coach, and I did not stay in a hotel last night. But I have heard Coach Saban, even this week, blame the RBs or at least give them some of the blame. It made no sense to me because what I was seeing on tv were a bunch of OL standing up and trying to dance with the DL instead of firing upfield and knocking people on their rears.
Then it hit me. I've heard it said about zone blocking, and the RB technique that is supposed to go with it, that the RBs have to move quickly after the snap (no dancing, no side to side movement), and then when they see a crease, make a cut and get upfield. It's supposed to happen quickly. And yeah, there may not be a crease there, but an RB has to fight his instinct to hesitate looking for an opening. He's got to move quickly and cut upfield either way. If he hesitates, 99 times out of 100, he's dead.
I don't know how accurate any of that is, but it makes sense in light of Coach Saban's comments. Our RB's vision has to improve in addition to the OL getting things in sync.