Perhaps.
If the Jets trade Trouba for a LD, it needs to be a player that can really carry a 2nd pairing, because the Jets will be weak on RD. In essence, they would be switching for a 2 RD / 1 LD top 3 (Trouba, Buff, Morrissey) for a 2 LD / 1 RD top 3 (Morrissey, Sanheim, Buff).
Meanwhile, I hate to mention it but Myers has quietly been turning his game / season around. He's now on the plus side in CF%, relCF% and relxGF%, despite having the worst quality of team-mates on the team, by a fair margin. He's been getting relatively soft competition and zone starts, but that's compensated by having to play with a very shaky Morrow and Kulikov early in the season. I have a hunch that the Jets like Myers, and the feeling is mutual, so if Trouba is traded for a very good young LD, I wouldn't be surprised if Myers is re-signed on a team-friendly deal. It's not what I would advocate, but brace yourselves. It could look something like this...
Morrissey-Buff
Sanheim-Myers
Niku-Poolman
By the way, Niku has had some real struggles so far at the NHL level. I hope the Jets let him develop his way through it at the NHL level because he's going to be important for next season. But I fear that Maurice will lose confidence and avoid using him when they get deeper into the season.
And... Samberg might really be a dark-horse for a 3rd pairing spot as early as next season. He'll have an extra year of experience compared to Trouba's rookie season at the same level of competition. He won't produce much offense, but he's a big, shut-down type that is very smart with the puck. I'm looking forward to watching him in the WJHC.
(edited Myers for Poolman)...