uh...yea they do. Eddie get's abused all the time because of his lack of size. despite all the effort he gives.
Nate will be no different.
Eddie gets abused far more for his lack of speed than lack of size. (Talk about a double whammy for a player in the NBA: no height, no athleticism/quickness, no wonder EH has no chance on the ball, his help wasn't as bad, but still not great for lack of foot speed to rotate).
Lack of speed and quickness are not issues for Nate. In this defensive culture, his on the ball and team defense will be fine. He's more than quick enough to stay in front of his man and also be able to rotate when needed. AS long as the effort is there (and I know many will say that's a big if because of his Knick "poisoning") many will be surprised that his D can be far superior to Eddie.