Daniel Drezner poses as the GM of the Red Sox and comes up with an excellent innovation:

Convert Justin Masterson into a three-inning closer. Here's an area where the Red Sox can make in innovation, or retrovation; bring back the three-inning closer. Masterson would be perfect in this role, and helps to give the bullpen a guaranteed rest day.

Bill James once described Bob Stanley as a long reliever who could actually pitch. Using Masterson in this role sounds like a great idea to me. He could easily pitch three inning every third game.