This ignores two realities
- There is more and more TV money to spend on finding new coaches...and to retain current coaches. Just because the coaching carousel is going slow now, we are just now getting into the time of the year where schools start making big moves, sometimes when it isn't clear that's how it'll go. See Georgia, circa late November 2016.
- Jimmy Sexton is still a thing. He currently reps several of the hottest prospects for HC jobs at the places that are open, or will likely to be open.
The AD that decides to get rid of a coach on the heels of a good, for the program, season is putting his/her job on the line if they get into a bidding war and have that hire not work out.