At this point I think the SEC expanding is mandatory. The question is who and how many.
As the chances of the Big 12 falling apart continue to go up, it seems that for the sake of perception if nothing else, the SEC needs at least one Big 12 team as a trophy. To me, the best options are A&M or Missouri. You add a new market, you make it easy to balance the divisions and you don't make football insanely difficult.
It's going to happen though. It might end up being exclusively ACC teams but Slive has made it clear the SEC won't just sit idly by and let other conference grow in strength.
Well, I believe if you do something like OU+Texas and FSU+Miami there is absolutely no question in my mind that other conferences will be pounding their chest while the SEC beats itself up. I believe OU and Texas would cross a threshold and put the schedule difficulty through the roof (the SEC would have 9 of the top 20 all time teams).
I think expanding is important, but if the SEC can add at least one prime market (with A&M for example) and then wisely chooses it's other addition or three the perception of a stronger conference will remain and the chance for the best teams to be undefeated still remains as well.
If you tossed all the best programs into a single conference, let's say Michigan, Ohio State, Penn State, Notre Dame, Texas, Oklahoma, USC, Nebraska, Alabama, Florida, Tennessee, Georgia, LSU, Auburn, Arkansas, Nebraska and (insert football power here) were all in a conference together. Well, they would obviously be the best, but does anyone honestly think any team would run the table on those teams? No, so there'd be a undefeated Boise State from the WAC or West Virginia from the Big East or perhaps FSU from the ACC and they'd probably end up ranked higher than the 3 loss team from that conference. My point is you don't add any team on that list, you start from below it though, you consider West Virginia, FSU, etc... you just don't add the true elites because they're the ones most likely to unseat teams like Alabama and Florida and what good does that really do?