I love Spurrier. The man will always be the greatest Gator ever. Having said that, Spurrier should not be working as a coach at an SEC level.
Spurrier gave up the play calling duties at South Carolina before he quit coaching. It's a much more complex ability than most on here seem to realize. At 72 it's difficult to command the mental faculties and spend the required time and effort to be effective. Spurrier has frequently said that he didn't want to be the guy that didn't know when to quit and had to be fired. When he stepped down at South Carolina he knew he was no longer able to perform at a championship level.
Bowden coached till he was 80. He stayed 9 years too long and when they forced him out it was ugly. Beamer retired at 68 and he stayed 4 years too long. He had to be pushed out the door as well.
I'm glad Spurrier left with dignity and on his own terms. I would hate to see Spurrier as an assistant coach, no longer in charge, struggling on the sidelines as an old man. That would be the only memory of the Old Ball Coach the newer generation would have. It would taint his legacy for those that never actually saw his glory in the 90s.
I know some on this board think Spurrier can step onto the field and unleash the offensive genius he possessed as a much younger man. Fortunately, Spurrier has a sense of dignity and self awareness that has allowed him to maintain his reputation as one of the greatest ever and not be that sad old guy that didn't know when the game had passed him by.