The Athletics traded for Jonah Heim on Monday night, given the team's lack of viable minor-league catching depth options , even in a short timeframe. With Shea Langeliers expected to be out a couple of games on paternity leave, this will set up a question for this series: Will it be Heim or Austin Wynns that is on the roster this weekend? The A's will have to pick one of them, and the other will be designated for assignment, and likely picked up by another team, so they have to make sure to make the right decision. As we covered last night, Heim is the much better offensive player this season, but Wynns holds a big edge defensively — and he's been roughly league average himself. Our take was that with the A's pitching staff being what is supposed to hold them back this season, they can't afford to have an even worse defender in the lineup even just twice a week. We landed on Wynns being the better option for the A's of the two, but recognizing that a change will still likely need to be made.…