He's at worst a #2 d-man? Do you realize hes not even a number 2 D-man on one of the worst defensive teams in the league? There is a reason Oleksy, Carlson, Erskine (when healthy), Green (when healthy), have more ice time then him while in the lineup. And this is a terrible defensive team dude. Try putting Alzner on a real defensive team and he would struggle to get a jersey.
You are right that he is young, so to say he wont become a good defenseman is hard to say, but as of right now, hes only better then Schultz because he doesnt **** up nearly as often lol