I was really wishing Pablo wouldn't exceed 130 ABs this season, so he would still qualify as a MiLBer in my dynasty league. No such luck.
I have a similar "problem" in my other dynasty league, though my farm catcher won't come up this season. I also have McCann in that league and the farm catcher is Wieters. I'll have to find somebody in need of a catcher at some point before the 2010 season.
With Pablo's position eligibility, you should be able to play him and still shop for anyone needing an offensive catcher. I'm probably not going to carry a catcher into next season in LFOD hoping Wieters is in the opening day lineup.