Austin Rivers.
Jabari Parker.
Jahlil Okafor.
Harry Giles.
Marvin Bagley, Jr.
R.J. Barrett.
Cam Reddish.
Jalen Johnson.
Marquis Bolden.
Trevon Duval.
About one-third of these guys were considered to be the top guy in their class, and some were labeled as "generational talent" (Okafor, Parker, Bagley, and Barrett). Two of them are completely out of the league, and two others are considered to be guys that GMs don't want to build around (Bagley and Barrett). Even Reddish, a former RSCI #2 recruit (Barrett was #1, just like Bagley the year before) looks like he's going to be a journeyman forward for the rest of his career. Rivers was inexplicably ranked higher than Davis, Beal, and MKG in their respective class, and he's been mostly a bench role player for his entire NBA career.
Duke's had their fair share of elite players who have transitioned well to the pros (Irving, Ingram, Tatum, and now Banchero), but their duds far outnumber their elite players in the league.
I often wonder: is there a mental weakness with players who prefer the pampered sale's job Duke promotes - one of cheesy letterman's jackets, a "set for life" Ivy-league level pretend emphasis on education, and a diva culture that lends itself to lame mantras like "the brotherhood"?
I think there's a certain type of player who selects Duke over a program like Kentucky. They see themselves as separate, but it's also a culture of elitism and entitlement, and that entitlement often comes with coasting throughout their playing careers, feasting off of their raw talent but finding contentment with never engaging their inner junkyard dog. Tatum and a few others are the obvious exceptions, but the general rule for elite Duke recruits is a mentality that is soft as Charmin.