Is there some sort of rule or reason Mauer can't play 3B and put Vargas at 1B? Maybe a question of handedness, I don't know. People talk about how much of a great athlete Joe is, as shown in his defensive adjustments to 1B. He could probably fake it just as well at third. He can also throw across the diamond, given his history of doing it from his knees. I'm just looking at it as Vargas > Mauer > Plouffe. So ditch the worst guy, shift the middle guy to that hole, and make room for the big guy.