Seems like an okay trade. I'd hate to give up E5, but Aramis should put up similar numbers in the end. Reyes is much better than Cozart, and Pena is a liability.
If it were me, and I had an everyday catcher, I would try and replace Pierzynski as a UTL player. He's okay to use as a fill in, but I would find an everyday player on the wire so that you can get stats on a daily basis.
