Good observation. Love this.
Alabama let the game get away from them a bit, but really they controlled the start and the end. That fumble near the goal line hurt a lot, as did the turnover well into Alabama's territory. But, that one fumble aside it should have been 41-20 and cleared the spread.
I'd give Alabama a B. Fantastic start, relaxed too much and then tightened things up again. Alabama still had almost 100 more yards than Tennessee had, you go on the road against a rival and do that, it's not too bad.