Meyer. Franklin. Harbaugh. Richt. Mendenhall. Petrino. All hired in the last 5 years in the Big 10 or ACC.
Agreed, it's incredibly simple.
When the SEC was at its apex it had Meyer, Saban, Petrino, Franklin, Miles, Richt, Mullen, Freeze, Pinkel, and Spurrier.
UF huge downturn after Meyer
Ark huge downturn after Petrino
Vandy big step back after Franklin
Mizzou HUGE step back after Pinkel
OM no matter what you think about Freeze, he had 2-3 really, really good teams. Terrible now
South Carolina had a 4-5 year run best in school history under Spurrier. Will they ever get there again?
LSU... yeah maybe Miles wasn't great, but he won 10 or 11 ALOT... and they replaced him with ORGERON
Only school that's upgraded is UGA, and that may be a tad presumptious as Richt won 10 nearly every year he was there.
League is still getting the best talent, still sending the most players to the NFL, but most other Power 5 leagues are just as good, and 4-10 I'd say more than one league is better than the SEC (ACC, maybe Big 12, maybe B1G, and maybe even Pac 10 as the SEC's 4th best team lost to UCLA who went 4-8 last year)