Point: Yes, at worst, he'll provide needed depth at AAA. He won't hold anyone back.
Counterpoint: Wells wasn't very good last year...or any year since 2003.
Point: Yeah, but he wasn't horrible and had two very good starts in September.
Counterpoint: If you get to the point of depending on him, you're not good.
Point: Wells is another year removed from surgery and may be ready to return to his 2002/2003 form.
Counterpoint: This sounds like good news for AAA hitters. He won't be on the big league club anyway.
Point: He performed like a real pro for the Reds last year.
Counterpoint: Since 2003, he hasn't been very good. His last full season (way back in 2007), he put up a not so sterling ERA of 5.70.
Point: He could hold down the fifth spot in the rotation until younger players are ready.
Counterpoint: If Wells puts up over 100+ innings of 5+ ERA baseball, the Reds have no chance.
Point: They can give him a spot in the rotation with a short leash.
Counterpoint: Very short, I hope.