People also miss the 3*s he gets that are either just missed players or the coaches develop.
The real secret sauce is the huge staff, former HCs as analysts, former pro coaches everywhere, the best damned Strength Coach in CFB, and full time on staff Nutrionist. All of that is part of the process of achieving the best out of players.
You can't just hire kirby and some of the coaches, you gotta commit in full. Coach Boom was elsewhere for too long, Coach Mac didn't quite take everything with him. Jimbo has been the most successful and I believe FSU has put a lot in to the program the last decade to get there.
Very few schools can commit the resources or have the football revs to py for the operation Alabama has. Honestly Saban will retire in 4-5 years and the program will probably be okay for another 6-10. That's insane.