Again, I don't think that was ever the point of dispute since this is something that happens for every player. It seemed like another underlying discourse was at play that caused the kick back.
Now, when you say becoming more of a liability what do you mean? If by liability you guys mean it is disadvantageous to use him I disagree with the claim completely for a few reasons, one of which I stated in a previous post. It would be more disadvantageous at this point to not have him on the field. Secondly, you cannot mean a liability in coverage because the coaches know this and they do not ask him to cover TE's man to man nor wide receivers. He covers backs on swing passes just fine. He's not a liability against the run, he gets other players in the front 7 on D in position, he's the signal caller, so I'm not sure what you guys mean he's "becoming a liability." His physical skills are on the decline sure, but does that mean he's a liability? Not necessarily.