And this is why you keep Wakefield

Because now both Lackey and Matsuzaka are on the DL. While it sounds like Lackey might be due back relatively soon (this DL stint is probably just a head-clearer), the Globe sez that Daisuke "...has a sprained elbow, which likely means there is some degree of ligament tearing."

There are other reasons for Keeping Wake, of course, but the main one is that he's a known commodity: if his knuckle ball is dancing, he'll give you a shot at a win every time.