I am a Pats fan and watch them pretty closely. I started to follow the Cards last year. I have been a Tommie Kelly fan since his days in Oakland. IMO he is definitely not done. As a matter of fact, he was the Pats best interior DLineman before he got hurt last year( Wilfork was playing hurt)and he has looked great in camp this preseason IMO. I am not privy to what goes on behind the scene, but everyone says he is great in the locker room, too. No one on the Pats message boards(patsfans.com) can understand why BB cut Kelly. Kelly renegotiated his contract to stay this past offseason. He worked hard in rehab and He looks to be in great shape. I was amazed the other night how thin he looked. He looked like Richard Seymour, Same number. Same Build. The Tommie Kelly I know had a front porch. This Tommie Kelly looked to go about 310-315. I don't know if Bill Belichick(BB) feels he has alot of good young DL that he wants to keep but I don't see it. Kelly has been running with the first team all summer and can plug up the run and also get after the passer. If Kelly signs out in AZ, I think you just replaced DD without missing a beat. Kelly and Matt Shaughnessy are also good friends so that should help convince him to sign.
As far as the othe cut the Patriots made, Will Smith. I hate to say it, but I think the tank is empty there. He has not looked good in camp other than a few sporadic plays here and there.
The Pats also cut James Anderson. He was pretty good LB for the Bears last year. The Pats brought him in to be 4th LB/Coverage LB and he looked very inconsistent in camp. He didn't look very good in coverage during camp, and I am sure the Pats were disappointed that he struggled particularly with coverage but knowing the Cards problem covering TE's he might be worth a look.