Yes, he needs to become like Ghost, listen to his coaches, develop a responsible two way game and play up to his talent.
Ghost was better last season because he stopped forcing plays in the O-zone and got back on defense and used his body more instead of his stick when backchecking - things he didn't do his first two years which got him benched.
It's called "fundamentals." It's the difference between guys who just put up points (OEL) and guys who win games (Doughty).
As Ted's article showed, Sanheim royally sucked before they sent him down and played much better after he returned, like a lot of rookies, he was over his head and needed the AHL break to get his head on straight.
I'm hoping he shows up in camp stronger and with more of an edge, he's a defenseman, it's not enough to be a pretty skater, he needs to win board battles in his own zone and get the puck back, because you can't exit the D-zone without the puck.