As is life in the AAC (and really any non-blue blood). Any coach that we hire has two likely outcomes - succeed and jump, or fail and be fired (I know I know...CJL). This is even the case for quite a few non-blue blood"P5" programs. Every offseason Iowa State has their guard up hoping someone wont pick off Campbell. Although he turned down the FSU job, if ND or Penn State ever opens up, they'll be looking for a HC as well. Minnesota is in the same boat (no pun intended). Heck, even Penn State had to extend James Franklin (who jumped from Vandy) to keep him away from USC/FSU. It's the nature of the beast.
Regarding Scott/USF specifically, I genuinely believe Michael Kelly is our Ace in the hole. I'm not saying Kelly is going to fight off Ohio State or FSU if they come knocking, but the culture he is beginning to create and the way he is respected nationally should help us fend off the lower level P5's of the world. I say this for the same reasons I mentioned when people asked why a Clemson OC would come to USF....USF and the top half of the AAC is a tremendous destination if you want to prove yourself as a CEO in hopes of landing a TOP level P5 job. A guy like Scott easily could've landed a Vandy, Arizona, Colorado, Boston College level job. BUT, those jobs tend to be tougher and lengthier proving grounds as you're put in a disadvantage in your own conference.
I understand that many think CJL could've broken this trend, and maybe he could've, I'm not sure. Right now this program needs momentum and winning seasons. If MK thinks Scott gives us the best chance to accomplish that, then you hire him and worry about his replacement when that time comes.