The Diamondbacks catcher has a broken arm. Why not see if they'd make a deal for Andrew Knapp. Probably won't get much, but the Tigers seem to have a few decent catchers in house now. Rogers and Haase will be fine. Arizona has a top rookie in Moreno, but they need a veteran backstop. I bet they could get a decent prospect in return. Harris might have some idea what the D'Backs have, but I'm getting the feeling Harris was just in the Giants system watching everyone else work. Thus the "evaluating what we have" mantra.