Sounds tempting, but why are there quite a lot of examples coming to my mind, where players developed skills during their NBA career, that they hadn't at the start of their careers?
Even low value players like Drew Gooden can change their games in their early 30's. A guy like Meyers Leonard turned himself into a 3pt-shooter, cause he saw this as his only chance to get playing time behind Lopez. Gibson developed a very decent postgame over his career. There are actually countless of examples and you don't need to be espescially gifted to develop certain skills.
It's not like you come into the league and you either have game or you haven't. There are more factors, that make a great player.
All that WCS needs to be a decent offensive weapon next to Cousins is a solid jumpshot. And a guy this athletic with a nice stroke from outside would be a pretty special player for me.