I still would prefer that the Twins first address the bp issue by bringing in a good ML proven shut down 8th inning arm. Papelbon, Clippard, K-Rod all would easily fit this bill, and if the price is to high, you have a really solid backup option in Benoit. Once that is established I am all for bringing up Duffey and Acter shortly there after to see if one can "stick" as the 7th inning guy. I think it would be dangerous for the Twins to not make a trade and solely rely on some of their minor league arms, impressive and as high ceiling as they may be, we have all seen the results this year with how rookies are very up and down, a guy like Benoit or Clippard etc in the 8th at least stabilizes your 6 most important outs in a game.