That's just the way things are trending in the NBA. It's easier to find good defensive bigs than 2 way bigs. And the Raps settled for a solid role player with their 2nd round pick rather than gamble. You can't really fault them with that as Koloko looked like a safer pick. The gap between Koloko and Kai's D might be bigger otherwise Kai would be in the NBA after his workouts. And to be honest Kai's post scoring looks iffy at the moment.