Can't answer that question. But word on the street is Oates totally disallowed anything but 3's and layups. Seems to me as if HD is ok with any good shot no matter where it is on the floor. Word is Jarin, when not jacking threes, would try to get to the rim where he shot over 60%... but was not "allowed" to shoot a mid-range jumper at all. Apparently he had that in his game in HS. That's the word I heard.
But at the end of the day, UNC needed to get bigger, longer... Jarin fits that bill and is an upgrade from JWash on defense and perhaps just as good on offense. It's an upgrade in my book.