For a team that struggled with replacement level bottom pairings for a long time, we shouldn't be so quick to wish away competence. Dermott likely isn't ever better than a 2nd pairing guy, but certainly not replacement level.
I assume the second "Dermott" in your post was meant to be "Liljegren". The problem with getting Dermott out of the way for Sandin is that those guys aren't going to be used the same at all, Sandin wouldn't thrive in Dermott's minutes and he'll need to be sheltered by a partner who can skate where Dermott is that partner. No issue with getting the kids some time next year but Dermott is a guy that keeps them from getting exposed, he'd be great to pair one of them with
Oops, sorry about that.
But to be honest, I’m just being realistic. He’ll likely be claimed in the expansion draft. Decent player, nothing special. I get playing defense in the NHL is hard, but there are plenty of players that debut and even excel at the age of 21/22. I think Sandin and Liljegren are capable of that. They’d also save us cap space which is huge for this team. Next year, it’s time to give them a legitimate opportunity. Can’t coddle these blue chips forever when all they’ve done is dominate everywhere else.