It's too bad he's not more advanced since the biggest need for the team now is that top LD pairing with Weber as I just don't see Chia being the solution and Mete doesn't have enough offense. But if only he could be that top pairing LD it would do wonders for the blueline,
Romanov Weber
Chia Petry
Mete Edm
Kulak Juulsen
the top pairing would be physical and solid in their own end, both with big shot. Romanov would have to do a lot of the puck moving though if not most so that's a lot to ask for a rookie while also playing steady in his own end, which I don't see as a problem since in the KHL he rarely ever made a mistake at 18 and 19.
Chia and Petry should be ok, at times they will be a little round in their own end but Chia could cover for when Petry takes off, Petry can move the puck well so that takes pressure off Chia.
Edmundson would be a solid vet for a young Juulsen, both can play physical as long as the injury hasn't changed Juulsen's game but since we don't know where his game is at, Mete and Edm would likely do well enough on the bottom pair I would think.