This sums everything up pretty simply.The ACC can't be bold because ESPN has already cast its lots with the SEC. They are no longer the hunter, but the hunted.
ESPN and/or FOX will decide how this shakes out just as they have with every other move that has been made in realignment.
ESPN already has some history in deciding which conferences and schools survive and which ones don't. It's very well known that FOX is all in on college sports and now owns one of the 2 prized whales.
They will determine which of the Little 3 survive just as they will determine which schools currently on the outside get in.
It's always been about the money. Now they just don't try and pretend to hide it.