Kleven doesn’t look out of place in the 3rd pairing, in fact his game has been getting better on a steady pace. He is trying to bring his physical element in recent games and I like how he can also get the puck out to the neutral zone before making a safe play. Safe is the keyword to his start, he is playing a simple game but we will see more of his attributes as he gets more comfortable. I think the Sens 3rd pairing LD position is set at the very least. Let him watch some Methot tapes in the video room, may be Jacques Martin will insist on him also watching the A-Train (Volchenkov for you young uns). Groom him to become a reliable partner who can play top-4 on a pinch if needed.
There is a lot for him to learn just from his teammates. Sanderson, Zub and now Jensen are reliable players he should learn from.