The SEC office is currently blocked by members from doing what it probably wants, which is adding Clemson and FSU. If someone else moves to 16, Florida and USC east won't have the ability to keep preventing that expansion.
Honestly, Waylon, don't you ever think that "if I'm seeing something that a conference office, working full time to see it, isn't, maybe it's me misreading the situation and not them?"
Good point. Business and education leaders have a long track record of exceptional decision making. Honestly businesslawyer, don't you ever think that "if I'm seeing the two smartest men in college athletics, Larry Scott and Jim Delaney, move one way, that the guy doing the opposite may be dead wrong?". And Vanderbilt is publicly against expansion. Do you know more about this than Vanderbilt?
Texas, Oklahoma, Texas Tech and Okie Lite to the Pac 12 ends the Big 12. The Big 10 will come in, take Missouri and Kansas, and put the screws to Notre Dame. Notre Dame realizes that the option is expiring, and that no matter what happens, it is unlikely that the Big East will be a viable option in the future. Political pressure pulls Kansas State along for the ride (maybe).
Now the Pac 12 and Big 10 are both much stronger and more marketable, and the SEC has Texas A&M to show for it. So they go after the ACC, except now politics and the Big East are in the picture. The Big East begins the no fault divorce, splitting from the Catholics and inviting Maryland and BCU, who join because they know they are not on the SEC's wish list and they know that 3 schools will leave. The Virginia schools are a block, as VT has already signaled publicly, as are the North Carolina schools. The pressure starts to mount on Georgia, Florida and South Carolina to vote against any expansion plan that doesn't get Georgia Tech, FSU and Clemson into the SEC. At the end of the day, the SEC ends up with a bunch of programs that would have been there whenever they wanted and do not move the needle economically or on the field.
The wildcard is ESPN. ESPN could step in and protect the ACC, which will doubly screw the SEC, because by breaking up the Big 12 they sent high quality programs to the Pac 12 and Big 10, and now they are stuck at 13.