Duke legend Mike Krzyzewski announced that he will be retiring after the 2021 season. Coach K has been the head coach of the Blue Devils for 41 seasons, becoming the winningest coach in men's college basketball history while winning 5 national championships. Does that resume impressive make Coach K the greatest coach in college hoops history? --------------------------------------------------------------------------------------------------------------------------- Follow SI on all social channels! Twitter: https://buff.ly/2Pf9t9e Facebook: https://buff.ly/3l3ziFu Instagram: https://buff.ly/3oZia6i TikTok: https://buff.ly/3wGhuFc Subscribe to SI today for access to the biggest teams, the boldest names, and the legendary stories that only we can deliver: https://buff.ly/34iPNWS