I have a myraid of problems with David Wells, mainly old wounds that will never heal, but the guy can still pitch. He threw nearly 200 innings last season and only gave up 20 walks (1st with a min. of 195 innings pitched) with a WHIP of 1.14 (top 10). For amount of money the Sox are giving him, he is definitely worth the risk as a #3 starter. Wells has to make the starts and pitch the innings to bring the contract to its full value, which should give him plenty of motivation to stay healthy. I view this signing as a bridge to get Ben Sheets when he's a FA.
Plus, this will infuriate Steinbrenner every time Wells takes the mound in the Bronx.