The rotation uncertainty is actually the reason I'd consider giving him a slight extension. Even assuming we sign CJ Wilson this offseason, that gives us just Wilson and Garza as sure things for the 2013 rotation. Z is likely gone (right or not), Cashner is a major durability question mark, and Wells is a major performance question mark. He may well decline, but he's been much better than most people realize the past few years and after a dreadful April he's largely been terrific (other than a July hiccup). You can't ignore the struggles, but being great for most of the season is a real positive. He's actually probably a pretty good candidate to age gracefully. He's been a reliever for a little while, so his arm has had quite the mileage a 33 year old pitcher would, and he doesn't rely on overpowering stuff, meaning as long as his control stays he should be at least decent. If you can get him for $10-12 million a year, you can afford a bit of a dropoff.