Jones?
You mean the guys that went to prison? Is that really the same thing that you are talking about? No.
You are saying that they give him 'guaranteed' money, but put incentives on them. If he matches the incentives, he gets the signing bonus as they dish it out. You are twisting.
As I said in the post, would I see some behavior clauses, sure. But the teams you just mentioned had to sue to have an arbitrator rule if they COULD get their money back. These guys went to prison. They even had to get a ruling from an arbitrator to see if Ricky Williams had to give a portion back after he quit. Point being, its not just as simple as you are making it out to be. Teams just can't arbitrarily 'keep' guaranteed money that is part of their base salary.