After a hard-fought 100-93 win over Arizona in the Sweet 16, it was hard to see any difference between Duke’s star freshmen and their veteran mentors. Young and old have merged in the middle.

David, 30, is coming off the worst season of his career. Will, 24, has been besieged by injuries. But they haven’t lost hope.

By sewing shattered mirrors and reflective embellishments onto everything, forcing a literal self-reflection that’s shiny and ...