J Cole album has sold 600k copies in total in the U.S. That's 200k more than Wale, 300k more than Big Sean, and he did it on his own. The reason why you don't see Jay-z overshadowing his artist is because he learned his lesson with Rocafella. He overshadowed Memphis Bleek , Beanie Sigel, Freeway,etc and as a result people viewed them as Jay-z sidekicks. J Cole is viewed as his own artist, he doesn't need Jay-z to get him hot.

Think before ya'll type useless nonsense. You don't the see the execs at Sony, Warner Bros,etc all in their artist videos. After all Jay-z is J Cole boss, not his best buddy.

I'm sure Jay-z will treat Jay Electronica the same way too, let him build up his fanbase and do things organically.