Right now Semi isn't good. His defense is decent, which is good for a rookie, but it's not near-elite as some have claimed. He makes plenty of mistakes and I have seen him get beat by mediocre players more times than I have seen him shut down all-star players. It is fair to state, however, that he is just a rookie and he can get better. How much better is the question. As of now I haven't seen anything to make me think that he will be more than a defensive role player. College stats, especially from a secondary program, and combine results are meaningless at this point. All that matters is what he does on the court. Right now, he can play some defense so he's getting time. When Hayward comes back I suspect he won't play very much. I simply don't see where his mpg will come from with the celts at full strength. He won't take time from Hayward, Brown, Tatum or Morris. He can switch onto bigs during rotations, but I don't think they would play him as a big. Even in a small lineup you are much better off going with Morris or Tatum as a small ball 4. He's the 11th guy on the roster, counting Hayward, after the draft he could be 12th. (Kyrie, Hayward, Horford, Tatum, Brown, Morris, Smart, Baynes, Rozier, Theis, Semi)