Duke fans remember a lot about the 2015 National Championship run. They remember Jahil Okafor’s fanciful footwork in the post, Quinn Cook’s senior leadership, and how Tyus “Stones” earned his nickname. What often is forgotten is the fact that, with just four games left in the regular season, Coach K made a significant change to a starting lineup that had lost only two games when healthy: Krzyzewski inserted sophomore Matt Jones into the starting five in place of junior Amile Jefferson. Jones served primarily as a defensive specialist on the perimeter, but his presence allowed Justice Winslow to play as a stretch-4, creating offensive mismatches that Winslow exploited throughout March.