Thanks to truckloads of TV money annually being dumped on major conferences, college football is increasingly a ridiculously fickle business, especially in the SEC.

If you're hired as a head football coach in this league, you normally sign a five-year deal.

Translated: Improvement is expected each season for the first three years with no missteps. If not, you must have something useable for leverage to squeeze out one more season to prove yourself.

It could be you're an alum, like Mike Shula. The former Alabama quarterback somehow lasted four seasons guiding the Tide from 2003-06, but his 'Bama diploma finally didn't mean squat when he had only one winning season.

It could be you win a national championship in your second season, like Gene Chizik did at Auburn in 2010. But when you go 4-12 in SEC play the next two years, you suddenly have plenty of time to polish that national title bling.

It could be you're great with the media, personable and glib, as well as being the son of a coaching legend, as was Derek Dooley in three seasons at Tennessee through 2012. But when you're 2-14 in the SEC in your last two seasons with losses to Kentucky and Vanderbilt, you quietly find an escape hatch to become an NFL assistant.

Now there's the case of current Florida coach Will Muschamp, who went from 11-2 two years ago in his second season to 4-8 last year, including 3-5 in the SEC and unimaginable home loss to Georgia Southern.