His failure if he went to another team would be of epic proportions. Everyone would blame age, and The Lack Of Talent Around Him - but the fact is he will be he will no longer be in his system - the system of cheating, the same offense he was in for 20 yrs where the 7 yd slant would be there through muscle memory. Imagine also the loss of the phantom chain-moving flags at critical times - or refs actually letting defensive players touch him - or actually calling him for egregious grounding multiple times a game.
I would loooove to see him go to another team so bad - a guaranteed fail - no doubt enough to expose and stain his "legacy". F him.