In some ways I see Mills heading to Houston as a chance to solve the Tek situation rather well.
He still brings value to the club in several ways - it's just that none of those ways are behind the dish or at the plate anymore.
If the Sox don't pick up his option, but rather offer him a position on Tito's bench you still get his preparation, leadership, ability to call a game and ability to work with the pitchers.
I'm not sure if he'd be ready to hang up the spikes yet, but I would like this move for the Sox.
Not sure if Kotteras is what you'd want as a back up or that Brown or Wagner would be much better, I'd think you can bring in a cheap experienced Vet to compete in spring ball though and gain defense over Tek, if nothing else for '10.