Steve Spurrier is known to have said that all three Florida schools belong in the same conference and South Carolina belongs in the ACC.
Working on that premise:
While the ACC office is happy to see Miami football return to prominence there are some that were not happy to see Miami return to Miami form. The "turnover chain" seemed to be the breaking point for some of the old guard.
Here is how the "new" realignment works out to live out Spurrier's suggestion and to accommodate Texas' wishes.

First the ACC cedes Miami to the SEC and trades Florida State to the SEC for South Carolina.
The ACC then sends Boston College and Syracuse to the B1G.
Then we bring in Texas and their entire entourage which would include TCU, Baylor, West Virginia and Texas Tech. To complete expansion to 18 and keep a presence in Florida, the ACC adds UCF and USF.
The 3 pod system sets up like this:
Baylor, TCU, Texas Tech, Texas, USF, Louisville
Georgia Tech, UCF, Carolina, Duke, UVa, Virginia Tech
West Virginia, Pitt, Clemson, South Carolina, NC State, Wake Forest

The PAC remains the same at 12

The B1G:
Syracuse, Boston College, Rutgers, Penn State, Maryland, Ohio State
Michigan, Michigan State, Indiana, Purdue, Illinois, Northwestern
Minnesota, Wisconsin, Iowa, Nebraska, Kansas, Iowa State

The SEC then becomes:
Miami, Florida State, Florida, Georgia, Auburn, Vanderbilt
Kentucky, Tennessee, Alabama, Mississippi State, ole Miss, Arkansas
LSU, A&M, Oklahoma, Oklahoma State, Missouri, Kansas State

Notre Dame remains semi-independent with the ACC.