Defense is where he struggles, yeah. His positioning and gap control just isn't very good right now. Which is obviously very important for a defenseman, but he's trying a lot offensively. He has tons of upside as a point producer.
I think if you're the Blackhawks, you just pair him with Vlasic to help alleviate some errors, and then that frees him up to cook in the offensive end.
And obviously you continue to work with him to improve his defensive play. I think it helps that he's a big physical player. That type of engagement you can't really teach.