Read this article from Frank:
The Jump to Conclusions Game: Why Angry Aggies Aren’t Enough to Move Texas A&M to the SEC « FRANK THE TANK’S SLANT
I enjoy reading Frank's stuff, don't get me wrong, but the guy has been wrong on pretty much every conclusion he's come to about conference expansion - I suspect he's wrong about this as well.
The Big Ten & SEC can only go to 16 by raiding the ACC. The reality is, there aren't any schools in the Big East that deliver major markets to the point that the BTN would be on basic cable in those said markets - in order to get that market penetration, the Big Ten & SEC will have to look to the ACC.
Schools like North Carolina, Duke, NC State, Virginia, Va Tech, & Maryland can provide the type of market penetration those two conferences are looking for in brand new states. I see it as almost a certainty that the SEC or Big Ten (and probably both) grab at least a couple of the aforementioned schools, and perhaps all of them.
Keep in mind the ACC TV contract is nearly $10M less per year than what each Big Ten school brings in ($12.9M per school according to link below).
ESPN outbids Fox for ACC television rights - Triangle Business Journal
Maryland is in all kinds of trouble with its AD budget - that school would likely jump at a chance to get in the Big Ten.
Maryland athletics department faces financial challenges - The Washington Post
As we saw last summer, all it takes is one or two schools thinking about leaving and all hell can break loose inside a conference. This is the reason I think the "unity in the ACC" is often overstated. Once one or two schools even start talking to another conference, all of a sudden everyone gets nervous and begins exploring their options - it is a total domino effect. Obviously the Big 12 is less stable than the ACC, but there is a HUGE revenue disparity between the ACC & the SEC/Big Ten.
No doubt that the big prize from the ACC would be the Duke/UNC combo. The SEC has no shot at those two schools due to academic reasons, but the Big Ten, who would love to have the BTN on all those TV sets in NC on basic cable, could pitch them a pretty good strong sell. There were rumors floating around a while back that Delaney had UNC/Duke on "his radar", and until I see differently, I'm going to assume that Duke/UNC/ND are the primary targets going forward for the Big Ten.