I think it's going to be Jimbo.
FSU (and the state) is cash poor. They can't match Texas and they definitely can't match Texas on what his assistants would get. They stalled and dragged their feet a year or so ago on a contract extension and raise. He has reportedly had run-ins with the administration over other things. When he wanted an indoor facility built it took several years.
FSU is the second team in that state. It's only a matter of time until Florida rises again and Miami is on the way.
In Texas, Texas is king. Baylor is humming and Briles is amazing but we can't compete with the history and allure of Texas if they are good to great again. We'll still win some battles but we'll lose more than we win and our percentages will drop with a good HC there.
Jimbo (and everyone else) knows this. If they think they can handle "Texas" then they know they can compete year in year out without a problem. At FSU, that is no guarantee.