What rumblings? The only talk was generated a few days ago by that idiot Tim Brando, who claimed that ND and the ACC were in discussion for ND to join for football. No other rumblings other than Brando. Swarbrick shot that down by stating that there was absolutely no truth to what Brando was saying. Then Brando backed off his original statement by claiming that he was only speculating as to what ND and the ACC should do.
There was no other "rumblings" that I am aware of other than the Brando one that was immediately shot down by Swarbrick. It was just another example of a media creature drawing attention to himself by starting a rumor about Notre Dame.