I figured you would mention the Saban to Texas thing.
There is a big difference here. 1) Saban stayed at Bama because they were able to pony up the money. FSU is not in that league.
2) Texas and their ego can go after any coach or at least try. They felt they could get Urban if they really wanted too. While unrealistic, they have the resources to try and do what they want.
3) Athletic budget is only part of it. Remember, a lot of the money for these coaches comes from Alumni ponying up to help subsidize it. Texas and FSU are different worlds as far as alumni, endowment, etc. Notre Dame, USC, Ohio State, scUM are all in the Texas realm. FSU is a tier below that. WHen it comes to money, FSU is a class below.