Carolina has very little bargaining power, as their contract is signed and dried. As long as it's a FMV deal, Carolina can do jacksquat about it. The rumored issue was he was taking less than FMV guaranteed and loading up on bonuses, which doesn't reduce what Carolina would owe since it's not his base salary and that opens up potential litigation to reimburse Carolina to FMV. It's hard to determine what is FMV, a lot of different metrics could be used to determine it. As long as his contract isn't loaded with a high percentage of bonuses or isn't obscenely low, Carolina has no say. The issue is, trying to incentivize Rhule with bonuses, but not breaking the bank on base salary to keep out of litigation.