So we have:
Mason - Kansas to Minnesota (1997)
Saban - Michigan State to LSU (2000)
Ty Willingham - Stanford to Notre Dame (2002)
Kiffin - Tennessee to USC (2010)
Bielema - Wisconsin to Arkansas (2013)
Mullen - Mississippi State to Florida (2018)
Taggert - Oregon to FSU (2018)
Fisher - FSU to A&M (2018)
So it happens more often than I thought, but still not frequently.
Anderson - Wisconsin to Oregon State (2015)
Riley - Oregon State to Nebraska (2015)
Tuberville - Ole Miss to Auburn (1998)
Franklin - Vandy to Penn State (2013)
I'm sure there are others we're forgetting about.
If you think about it, that's a fair amount, because only the top tier schools can generally pull someone from another P5 school, and those jobs don't open every day. Not like say Kansas or Colorado or NC State is going to hire Fleck away.
I'm OK with a modest raise and extension (believe he was given one last year already). But to put him on par with Franklin or Harbaugh is laughable at this point. As Gibson mentioned, Brew was 7-1 in his second season. People believed he was the next coming of Murray Warmath. Would you have been happy to have extended him at a rate to make him one of the highest paid coaches?
I'm not comparing Fleck and Brew, I'm just saying a lot of things can happen the next couple years. If you go all in on Fleck and it doesn't work out, it's going to hamstring the program with the money they'd pay out. If you don't go all in and he's hired away, that means the team is in pretty good shape, and it should be fairly easy to hire another desirable coach to come in. I don't think locking up Fleck is the most essential thing right now.
Yes, should they win the West or more, of course you need to compensate him. But until that point, they should be anteing to stay in the game, not going all in.