Also, I'm not really sure how desirable the ACC teams really are to the B1G or the SEC. UNC would be highly coveted but I'm not sure other programs are truly value-added.
Clemson is a brand name now but wouldn't the SEC be just as happy, or happier, to watch them wither and die in the ACC rather than have to cut them in? Do they have something built that survives after Dabo leaves? What does Florida State actually bring to the table? Does Duke's brand really command much revenue as a basketball-first school? CFB fans seem to think that Miami still carries weight but do they? I don't think they bring much revenue to the table judging by their attendance.
In the end, I'm not sure there is much appetite break up the ACC.