Krzyzewski has been given the opportunity to coach in the NBA at least five times, but has rebuffed the offers every time. Mike Krzyzewski's net worth is $25 million. Mike Krzyzewski's House. Mike Krzyzewski, also known as Coach K, lives in this $1.15M mansion near Duke University. He is an American basketball coach and former player, serving as the coach for the Duke Blue Devils since 1980.