Offensively, he has great potential, has better vision and passing ability than any of our defensemen, and has a good shot. Defensively, it's not that he isn't capable, and yes the lack of size is a concern, but the defensive pairings have done nothing but highlight his weaknesses rather than shelter him. If anything, it highlights our lack of depth on the backend with Kuba being injured. Personally, I think being paired with a veteran defenseman like Kuba, Phillips or Volchenkov he would be doing fine. Right now, without Kuba we're essentially gunning on 4 rookie defensemen to carry the load, and it doesn't matter whether it's Karlsson, Campoli, or Picard who are there, they are all going to get exposed badly, especially if Phillips and Volchenkov are playing together.