I want to go on record here as saying that McDermott might be the right pick even as high as six. And should definitely be in the mix in the 5-10 range. After Embiid, Wiggins, Parker Exum and Smart, I am fine with Danny taking McDermott. This kid can flat out score, he's 6' 8" with four years of college. And as others have said, even as an elite shooter only, will have a place in the league. I prefer him to either Aaron Gordon (offensively very limited) or Julius Randle ( dont see him as dominant at the NBA level given his skill set) or Vonleh (who really needs more time in school). I think he is legitimately in the mix before the tenth pick.
He can't defend in the NBA (I mean he doesn't defend in college!), that seriously limits his value even with his elite shooting.
He can be hidden, due to Rondo's elite defensive ability to defend both guard slots, and even occasional SFs.
However, you can really only have one guy you need to hide. Right now, that's Olynyk. Likely, Olynyk will never be a good enough defensive player that someone can hide a poor defensive player with him on the floor.
So, for our team, McDermott projects as a bench player. Here's the question: would you be comfortable drafting a bench player at 6? At 7? What if you knew he'd be a good bench player?