Duke will be without Mike Krzyzewski for up to a month following back surgery this Friday, as a nagging herniated disc wasn’t healing after weeks of non-surgical remedies. It’s somewhat odd to think that the program Coach K built is, in many ways, built for life without Coach K. His top lieutenant has been a head coach before. He has kited off for extended Olympic-related absences and left the preparation and improvement of his players, not to mention the day-to-day business of running the operation, to his assistants in Durham. And the 2016–17 version of the Blue Devils certainly seems to have enough talent to cope with this interruption.