Who said they will sit? Did anyone think Frisch would be a mainstay on the blueline this season? Plus, the extra skater helps depth. I don't think losing Kierstad or JBD is a good thing, whatsoever, for the team. You come to UND, you aren't guaranteed anything. Gotta earn the ice time.
I think it would be beneficial to the programs long term health if we do indeed have one early departure on defense. Developing players that are ready for the NHL after 2-3 years at UND is a big draw for recruits. There are reinforcements coming year after year. If everyone returns, we'd have a starting six of Kiersted, JBD, Tychonick, Bast, Sanderson, and Frisch. Will Kleven or Moore come in to sit on the bench all season? In my mind Kiersted is ready to move on (probably a better NHL prospect than Poolman at this point), and JBD is pretty close. I could definitely see JBD coming back another year to be the clear cut #1 guy. Right now an argument can be made that he is anywhere from the #1 to #3 d on this team. A top pairing of Sanderson-JBD next year could be pretty unreal.