Because he was too preoccupied in making a bloody fortune at Duke. Mike Krzyzewski, dubbed "Coach K," announced his retirement on June 2, 2021–2022. He is the all-time winning leader of the Duke Blue Devils basketball team and one of the most successful coaches in NCAA history. He took over the struggling program in 1973 and led it to unprecedented success during his 26 years at the school. Under Coach K, Duke made the NCAA Tournament every year except for 1975 and 1979 — when it went 30-0 and won the national championship, respectively. He also brought three straight Final Four appearances from 1991 to 1993 and a National Championship in 2003. After retiring from coaching, he stayed at Duke to take over its training center in Durham before moving on to become the president of the college in 2006. However, he returned to coach the Blue Devils in 2011 and 2012 after Danny Green and Jabari Parker were killed in a car accident in 2013. He coached his last game on April 7, 2012 vs. Virginia Commonwealth University and was diagnosed with stage 4 prostate cancer two months later. He had been treating the disease without any signs of progression until January 2020 when it was reported that he had begun receiving radiation therapy. Even though he has retired from coaching, he still works as the president of the college at Duke.