I don't think A & M is going to have a let down following their home loss to Bama. I didn't see that game but the score indicates it wasn't a blow out so it might actually build A & M's confidence.
If A & M was playing a no-name team then they might have a let down. But one thing over the years is that teams don't have a let down when they play us. This seems to be true even when we suck.