The optimum would be to have two versatile catchers and an emergency third catcher, who is also versatile. The Twins don't have that and they don't have lefty-righty balance either (Doumit is a much stronger LH hitter). Mauer is a franchise player and as long as he is a catcher, everything needs to be built around him. Doumit is a good hitter for a catcher and acceptable as a DH and he can spell someone in the outfield. His defense doesn't have many admirers. He would be best paired with a gold-glove type righthanded hitter. Butera doesn't hit well enough to be a major leaguer. There are equally proficient defenders to be had, who would have a far better chance to do offensive damage than Drew Butera.