He wasn't dominant the first half of his rookie year.
And I do know what I am talking about and I am the first one to call out "our own" players if it warrants.
Donald was exceptional the second half of his rookie.
Oliver is going to have to do a 180 to be in Donald's class in comparison to the second half of their respective rookie years.
Point is, people can't expect every rookie that is drafted high to come in and dominate right away. It just isn't in the cards for every rookie.