I dont think you have o worry about it. Once we get into the playoffs, irrespective of what happens there, they will redo his contract I guarantee you.
I dont think he will want to leave yet anyway because the hardest part is done already and he has Milton next year and Nico coming in. Besides coach pay, it would have to be a place with crazy NIL like we have to get some top recruits before the team "deserves" them.
He has a place here that can build a dynasty in the heart of the SEC. A rich storied program with tons of resources and absolutely rabidly fanatical fans,
Do you honestly think with their history together that Danny White is going to let Heupel even THINK about leaving if it is a matter of money?
Where I am much more concerned is assistants