Sheffield to the Mets?

I really hope for the Mets sake that none of these rumors are legit, and if they are that they don't actually sign Gary Sheffield.

Yes, Ryan Church is no model of health, Fernando Tatis isn't all that great, and Daniel Murphy has never played a full season in the majors, but why sign Sheffield? There is a reason the Tigers ate $14m to get rid of the guy. That's no small change. He's a headache who's worth it when he's healthy and raking, the last 3 years he's been neither.

I know Frank Thomas is a DH and only a DH, but why is Sheffield getting all these rumors and Thomas not even a sniff? Sheffield can't play the outfield any more than Thomas can play 1b. His role is only pinch hitter, and at this rate I'd take Thomas over Sheffield in that role. Baseball people love using the old adage that if you've done it before you can do it again. The only problem is that Sheffield can't do it again.