They are probably making room for Hicks.
For the life of me I can't understand why Hicks gets rated so high every year. He just hasn't produced at all in the Minors, yet he's always considered a Top 100 prospect. He's not that young anymore either.
I think the Twins long term have some nice looking players that could end up in the outfield (Buxton, Adam Brett Walker), but those guys are years away.
I thought they got rid of Span to make room for Revere, which makes this move very puzzling