Doumit is not an everyday catcher....he's a borderline back up one at this point
There is a sort of a spectrum of offensive catchers from Saltalamachia (below avg catcher, ok career hitter) to Pierzynski (poor catcher, better career hitter), to Doumit (bad catcher, even better career hitter). If a team is willing to sacrifice catcher defense for some offense, Doumit has the best offensive number and he could be in the discussion. I don't want Doumit to be a primary catcher for the Twins, but it's not outrageous to think a team would try to make it work, even as a platoon with a good glove guy.
The real point is that Salty doesn't make that much sense for a team that has Doumit, and that moving Doumit would make it make more sense.