Disagree. I think it'll be completely the other way around.
Kentucky won't be as good. Missouri won't be as good as they were last season, but they weren't in the SEC last season, so adding them will make the top better regardless. Florida will be better IN THE REGULAR SEASON. We may not go as far in the tournament, but we were crazily inconsistent last season which resulted in the fairly low seed. Tennessee will be better, obviously. Alabama will be about the same. Losing Green will hurt a bit, but losing Mitchell should be addition by subtraction. Devonta Pollard is a big time recruit. Arkansas should be a good deal better than they were last season, and Ole Miss will be a bubble team once again.
South Carolina is worse on paper than they were last season. They lost their two big men to transfer and have nearly nothing to replace them. Martin has a tough task in front of him. LSU will be way worse than they were last season. They were respectable with their NIT bid. Now, after losing Justin Hamilton to the draft, they'll have three players 6'8 or above, and only one of them looks to be any good (Johnny O'Bryant). Auburn will be about the same (which means they'll suck). They lost their best player, but bring in a solid recruiting class. Same with Georgia. They lose their two best point guards and are expecting 3* freshman to step up. Kentavious Caldwell-Pope and a now experienced front line may make them respectable, though. Mississippi State will be historically bad. Vandy will obviously be worse, but they're an unknown. I don't think they'll be as bad as most are saying.
tl;dr: The SEC may not have the ELITE team like 2011-12 Kentucky, but it will be deeper at the top. The bottom of the SEC looks to be a joke next year, with teams like LSU, South Carolina, Auburn, and Mississippi State all going through really tough rebuilds.