This is the key part. Anyone familiar with the workings of the Big Ten (sports revenue is ancillary, research dollars are considerably higher) can parse a list of potential teams and say who matters and who doesn't. The ACC is where expansion lies, not the great plains. Furthermore, all it takes in one lawsuit to dismantle the ACC's grant of rights agreement allowing UVA, VA Tech, UNC and GT (probably Pitt) to jump to the Big Ten.
UVA and VaTech would both be good additions and would benefit I am sure. They have to come together basically. No UNC unless Duke is part of that.