You seem to be interpreting this as having no offense. He's a top ranked player because he scores. I think it is better said that he has a huge offensive upside to polish his game. He has showed he can make clutch 3's sending games into overtime and winning games at the buzzer, but he is only going to take 1-4 3's a game when the situation presents itself. For Brewster I've seen him take a rebound and go end to end and finish. I've also seen several straight line hard drives to the hole and finish in half court sets. He's 'raw' in the sense that he can do much more and with more frequency. Not to be confused with having no offensive game. (I should also add, it is not a low post game. His offense starts most often from the wing)