Agree. I'm not going to use numbers, I'm going with the eye test. As an old first sacker, I've noticed 2 fairly big weaknesses in Hanley
Hanley stretches way too early. He appears to stretch and then find the ball when you really need to do the opposite. That means when throws are not exactly on the money, he is forced to make the play look more difficult than it would look if a more experienced first baseman were there. He's athletic enough to pull it off, but he shouldn't have to.
Hanley's other major weakness is throws, especially to 2nd. I don't get to see every game, but I don't recall the Sox turning any 3-6-3 or 3-6-1 DPs this year, and the reason is ususally HanRam's weak throws to 2nd. He fears hitting the runner and thus aims the ball instead of gunning it (in stark contrast that to the throw he made home against the Giants the other night on the 3-2 tag DP). Now it's understandable because as an infielder on the left side, he never had to make a throw around or past a runner going to the base he was throwing to. As an old catcher, Napoli made that throw often to first on dropped 3rd strikes so not a big change for him.