Woody can bring a lot to a team besides game wins. While those are important, if your team has a young pitching staff (and I'm not terribly familiar with SD, so I don't know what your rotation is looking like), Williams can be very valuable in a mentor role. His record this past season is misleading as well, as he lost a lot of 1 or 2 run games, which a pitcher for the Cards should not be losing. If SD's pitching coach is smart, and you guys can give him 3-4 runs a game, you got a good deal. I certainly wish him the best.
KenTremendous has already done so on twitter. The bit.ly link goes to fangraphs.com's defensive ratings, showing that Jeter ranks 4th among qualified AL shortstops in Ultimate Zone Rating Per 150 Games (UZR/150), behind Cesar Izturis (Baltimore)