Tatum is going to score a lot of points. I like the pick a lot. I like him at PF and the thought of a George or Hayward playing out there is a lot of shooting with size. Then Smart becomes more effective as well. You can have some very interesting lineups.
I think his defense, athleticism, and body reminds me of Otto Porter Jr., which is a compliment. Past that I think he has a much better feel for offense. He's 19 and is very polished already. He thinks offensively in an advanced, scorers way I think.