Well, maybe Ed Smith is going to prove me wrong straight away, which can only be a good thing. I agree with most of what Jonathan Agnew says here. Buttler is, as Smith has said, a unique talent, and I'd always want to find a way to keep him in the test set-up. He's the sort of player that could win you a game in a session, and for all the nay-saying about him being a 20/20 player, there are others who have made the switch successfully. David Warner, for example.
Bess looks a good choice, too. He probably won't get a lot to do in these first couple of tests, but it's a bold selection.