As I pointed out in the post above, Georgia, Florida, Auburn, and Ole Miss never even went to the NCAA tournament before the 1980s. Alabama never went first in 1976 as the Mears era was ending. Vandy has 3 conference titles in their entire history. Miss State had one NCAA appearance before the 1990s. LSU had some success in the 50s before Mears and not again until the late 70s into the 80s once Mears was gone. They literally let Pete Maravich shoot 50 shots a game for several years in a row with no concern at all towards playing winning basketball.
Since Mears left Arkansas, Auburn, Georgia, South Carolina, Miss State, LSU, Kentucky and Florida have been to the final four with 3 of those teams winning national titles. All 14 SEC teams have been to the sweet 16 in the last 25 years, The SEC was at best the 5th and usually the 6th best conference in basketball for most of Mears' career. Now it's usually 1st to 3rd at worst. In 2018 we had 8 teams in the NCAA T. There are good coaches and top level facilities all over the league now. There are 6 coaches in the league right now who've got a final four on their resume. The SEC post 1980 got way more competitive, there's just no way around that fact.