Mike Krzyzewski knows better than anyone about the changes college sports have seen in recent years, and he has a few ideas for how his former conference, the ACC, can stay competitive.

Mike Krzyzewski’s retirement has been mostly quiet lately but that changed recently when he brought up an idea on his SiriusXM radio show last week: that the ACC and the Big East should partner up. Here’s what he said: “Our conference has been a great one.