Saban won a NC at LSU and was widely respected as one of the best in the business. Then he turned Bama around in a heartbeat, so the day he came back he was essentially already the best in the business - only Pete Carroll could've rivaled him if he stayed in CFB.
The game has passed Miles by. He isn't Richt who was passed over for one of the brightest and most dominant coordinators in all of CFB. Miles was fired for a guy who struggles with basic sentences but is a tireless recruiter. The only guy who has done so little with so much talent is Phil Fulmer, Al Golden and Botch Jones. Look at how many players from the NFL came from LSU; they are leading all programs, including Bama.
If that isn't a wake up call I don't know what is. Miles had all the pieces for YEARS but could never attract a top tier QB. Why? Because he remained extremely stubborn about his offense and refused adapting; meanwhile guys like Saban, Belichick are the best in the business for a reason: because they evolve and adapt. Les Miles stopped evolving his offense 10 years ago hence the reason NO MAJOR P5 wants him. Not a single program except this dumpster fire of a program.