DURHAM, N.C. — This is what can happen when you try to plan a retirement ceremony with 9,000 of your closest friends, with the tricky caveat of including a basketball game.  This was to be Mike Krzyzewski’s night. Duke staged one of the grandest send-offs college sports had ever seen. It was nostalgic. It was elaborate. It was quintessentially Duke. Which means a lot of people loved it and a lot of people hated it. Which means it was perfectly done. All of this created the biggest buildup, probably ever, to a regular-season college basketball game. And then the greatest rivalry in American sports added to its legend with one…