One of Boston's top defenders on its 2008 title team is questioning whether Flagg is a franchise player at the next level

NBA Draft class has long been headlined Duke superstar Cooper Flagg, and for good reason. Most simply, he amassed one of the best one-and-done collegiate resumes we’ve ever seen. He led the Blue Devils to the Final Four,

But despite all the hype going toward the Duke star, one former NBA champion isn't buying all the hype around Flagg. Former champion and Defensive Player of the Year Tony Allen doesn't see Flagg dominating in the NBA.