To formally convert to the GOP, that is. Partially because Artur Davis probably wants the time anyway; and partially because (and here I speak from personal experience) it takes time to reconfigure one’s basic partisan identification. While your principles shouldn’t change when you switch political parties – and neither should your worldview – there is usually a whole list of damfool notions that you no longer have to grit your teeth, smile, and nod about; and it takes time to go through that list and cheerfully discard them all*.
But that’s OK: It’s going to be a couple of years before the next statewide elections in Alabama anyway. Plenty of time for a proper realignment.
*Unkind people will mutter that you instead have to memorize a whole new list of damfool notions to grit their teeth, smile, and nod about. But I’m sure that I have no idea what those people are talking about…