To me, it has nothing to do with his abilities. I've never been a huge fan of his and while he has his faults, he's still a good player. That being said, he's on the wrong side of 30 and will be relatively expensive at positions where we already have young and/or cheap bodies already here or coming up (Gamel, Green, Aoki, Schafer, Gindl, Morris, etc.). He's still under contract through next year and after that will be entering his age 32 season. I think he definitely has trade value so I would actually look to shop him in the offseason. I think what he brings back in a trade, combined with the savings from his salary and production from whatever player fills in for him, won't be too far off of whatever value he brings himself. If we still had a great pitching staff/bullpen, a SS, and a non-struggling 2B, then I might consider offering him a 2 yr extension. Depending on what happens with Greinke/Marcum, I don't know if we'll be competing next year so I would look to get some talent back for him. And then when (hopefully) some/all of Thornburg/Jungmann/Bradley/Peralta are in the rotation by 2014, we will be ready to compete and could maybe use that extra cash from Hart to get a good SS/3B/SP.