Last year he had 280 more 2 point field goal attempts that 3 point FGA's, this year looks like it will be closer to 200 when the season is over so I'd say that's the big difference right there. It's also a balance of low post versus perimeter ratings, his perimeter has skyrocketed but his low post has remained the same, so that means he's going to take more 3's regardless of what you put his +/- at which decreases free throw attempts.