re: Of all SEC teams, which teams are improving and which are regressing?

Auburn alternated between both throughout the season.

I would say Georgia regressing, but we seem to have eliminated the middle stages of "regressing" and done it in one fell swoop; more accurate to say UGA football has already regressed. Went from our most successful era ever in terms of W-L percentage, to what is probably one of the worst teams in the SEC in a single offseason. Unless Kirby Smart is the fastest learner in cfb history, for the next few years we'll struggle against bad teams from any division, and lose to most teams with a pulse.