I don't think this is Sexton trying to get more money for Saban. Little Nicky is worshiped and if he wants a raise, all he has to do is say he wants a raise. His MNCs are his leverage, he doesn't need his agent playing the same games that other agents normally have to play for their clients.
He won a MNC at LSU, expectations became very high, and he left. Expectations at UAT are now higher than ever, so he may be actually looking to go elsewhere and fix another struggling big name program. Dan Patrick made an interesting comment about Saban...he might be more of a "fixer" than a "maintainer".