The move makes sense for one reason. It relieves manager Dave Trembley of the obligation to play Zaun twice a week and tell him in advance when he's going to play. He felt like he had to do that, but likely won't make any promises to returning backup Chad Moeller, who was elevated from Triple-A Norfolk. Moeller is a pure backup, so he'll play when needed. He'll still probably get a start or two a week, but Wieters is the clear No. 1 now.