Well I can't find some advanced stats for certain guys, but eyeballing it based on what I can here are guys who were not great college performers by the numbers (particularly as Freshmen) who blossomed starting with 2006 draft class:I have never gotten into the NBA draft stuff as much as the NFL stuff. But are there any/many examples of young college players like Brown putting up poor advanced stats in college and then reaching the perceived scouting high ceilings?
Rondo, Lowry, Bradley, Westbrook, Holliday, Henson, McCollum, Muhammad, LaVine,
Now it's going to depend on what stat you use, etc. etc. but those are all guys who were similar performers to Brown in their first year, some stayed longer and improved in college, some in the pros.