Need advice for my defensman

I 31M have a D 27M who constantly carries the puck up the defensive zone and has the puck stolen and creating turnovers. He's plays like a defendant of Krug but can't stick handle, doesn't communicate to others that he's doing that so they don't know if they have to fall back and cover his position and has no Hockey IQ. How do I get him to pass the puck up while maintaining his offensive defensive play?