The chasm between the AA and the Hill had a lot to do with Tech leaving the SEC. SEC schools were trying to stick with Bear Bryant's Alabama. Bear Bryant would bring in 100 players a year and run off what he didn't need. Football was becoming bigger and bigger, and the excitement over bigger paydays lead schools to lower their standards, agree to virtually unlimited signing amounts, etc.
Dodd fought this. What I don't know is if Dodd and Tech fought it out of pure emotion for players well being, or some other reason. There were other pressures happening in the south. Maybe one could predict the huge influx of black players, players that just did not have the education opportunities to make it through Tech. I don't know but I have always suspected that Dodd/Tech knew their days were numbered. Historians suggest that they made a bad poker play, got caught, and chose to save face by leaving.
The crying here over leaving the SEC is over the top in my opinion. Yes, I miss playing Auburn and occasional other SEC schools. I sold peanuts/coke and I liked the energy at Grant Field when local schools came in (Clemson too). But, my gosh, Joe Petit killed Tech sports more than this decision. I liked Smiling Joe, but like so many others since, restricting college athletics because they could harm our prestigious degree is a big bunch of BS.
Today, we have found a high energy salesman. Thank God. But he's still going to run into the same problems as before. Ma Tech really doesn't care about football. Dodd gets the blame, Ma Tech did the killing.