Tyler is very raw. He got no playing time in Israel, and in Japan, has been okay in limited minutes. The problem is, he couldn't stop fouling or turning the ball over. Also, against mediocre to bad competition, he didn't dominate. That calls into question how he'd play in the NBA.
From what some have said, the physical gifts are there, so maybe he'll "get it". I'm not expecting much from pick #25 in a weak draft, so if Danny gambles on him, I'll be fine with it.