You think nobody would jump from JMU (an FCS with a head coaching salary of $375,000) to Marshall (an FBS with a head coaching salary of $750,000+)? Every single FCS coach - outside of perhaps some at Ivys - would jump from that situation at JMU to Marshall. You're clueless.
If you don't think JMU to Marshall is a big enough jump to entice a top FCS coach, what program do you think would entice him?
A coach and program that dominated FCS - Craig Bohls at NDSU - left for Wyoming. Wyoming is in a better conference than Marshall, but it doesn't have a better program. Bobby Hauck went from a great FCS (Montana) to a bad FBS (UNLV). Trent Miles went from an average FCS (Indiana State) to an awful FBS (Georgia State). We could give examples all day.
Hell, look at JMU two years ago. They had a head coach who had back-to-back 9-4 seasons and then left for Texas State. So, you're argument is that a JMU head coach wouldn't leave for a program like Marshall because it is a lateral move, yet a coach left two years ago from JMU for Texas State.
Stay clueless.
I guess we will see how much Marshall is willing to dish out for a new coach if they let Doc go. 750K... I doubt it. Money is getting smaller every year.