Duke Blue Devils guard Quinn Cook and head coach Mike Krzyzewski embrace after defeating the Wisconsin Badgers 68-63 in the 2015 NCAA Men’s Division I Championship game at Lucas Oil Stadium.
(Photo: Robert Deutsch, USA TODAY Sports)

Mike Krzyzewski came here 24 years ago and slayed unbeaten UNLV in the Final Four. He returned five years ago and watched Butler’s halfcourt heave carom off the rim in a national title game for the ages.

But by 2 a.m. Tuesday morning — with a coaching résumé that