Ur seeing why
IMO it makes sense for duke in a pansy way. Every year they and unc basically compete to play home games until the final four. If you play and lose these games and the other doesn't or does and wins then you could, in theory, sacrifice the greensboro regional, and home games, and home fans, and home referees, and then have a hard time getting to the final four just like everyone else.
Coach k is a lot of things, but stupid he is not