From a football perspective, this is a no-brainer: the Pats need AB badly, perhaps more badly than they've ever needed anything during the Brady-Belichick era.
From the nonfootball perspective, it's dicey, of course. I'm a Pats fan, so of course I want them to have someone of AB's caliber, especially in this crappy offense they have now. And I also wonder: if someone screws up, even in a major way, does that mean they should never be allowed to work again, never allowed to pursue the good things they're passionate about?