By Michael Shapiro Diving into one key stat for each of the league’s top rooks as the playoff push begins. View the original article to see embedded media. It can be tricky to evaluate rookies as they roll through their first year in the league. Small sample sizes can breed results that aren’t exactly in line with a player’s performance, and a few hot games may present a budding star when a player’s profile otherwise suggests a rotation player. Fail to take the entire body of work into account, and you may enter Year 2 with an obscured vision of a player’s future. We’re beginning to get a more…