Skal is athletic? Since when? Not for a 4. Even for a 5 he isnt anything special athletically.He's an athletic stretch. Not many guys his size have a good motor, so to speak. Plus he isn't a bad defender despite being a stick - if he can get some more mass he'll improve.
WCS is a total space cadet. I still think he's going to have a decent NBA career but if he applied himself he'd be a better player. He's more of an underachiever than most NBA players.