The problem is he likes big headlines built on the façade of fake back-loaded money, that center himself as being this "amazing" agent. For him, it's not about whether they play out their contracts, but whether he can cite a big number on signing day for his PR.
The Bengals don't do business that way. They like real contracts. Which is why they are not compatible together and clash.
Plus his tactic is basically ... If the guy is worth 10, walk into the owners office and say you want 20 and then shout "la la la la la" until the team gives in from fan annoyance at what is taking so long. He's very patient gambling with other guys futures as he's already rich.