I dunno know, but here's a thought. Lucas was an unknown up and coming director when he pitched Star Wars. He pitched it to many studios before 20th agreed to do it.You'd think that Lucas would remember what that felt like and search the film schools looking for a really talented guy/gal like him, who just needs a chance and not go with an A lister like JJ ???
Even if Lucas were
inclined towards this train of thought -- and who knows, he might very well be
-- it isn't him who wears the pants anymore. The decision making process has probably shifted upstairs to the House Of Mouse.