Quoting: MisstheWhalers
Idk man I think it'd be an improvement and definitely improves the defense in the long run, if they hold on to Buff they're definitely not gonna get someone like Gostisbehere for him.
That trade would free up a ton of cap space too.
Buff is one of the top 10 defenseman in the NHL in terms of suppressing shots against, controlling play in terms of corsi, and doing it on a team that had trouble with that last year. Add on that he is elite at special teams (this is an overrated stat in a lot of cases, but when you're as good as Buff it does count for something). He'll probably decline a little next year because age tends to do that, but he will still be very valuable.
If we were rebuilding or reloading and not trying to win a cup in 2020, these two trades would make a lot of sense. But in this scenario, we have 3 new members of our top4, and only one of them is an upgrade on the player that used to play there. (Ghost is a massive upgrade on Chiarot, but that's still 1/3.)
There have been a lot of Trouba for Ghost trades going around. I'd be alright with any of those. I'd even be alright with not sending them Perreault if PHI views MP85 as negative value, and/or giving up a pick or prospect not named Vesalainen, or Samberg, to smooth out the deal.
As far as cap goes, the Jets aren't in trouble as long as they dump the right guys and give some opportunities to the right guys. 85 and 5 need to be gone, Trouba probably gets moved as well, and we can't be making any stupid UFA signings *cough*Tanev*cough*. And Poolman needs to get a shot. The guy was dominant in the AHL, has done decently in NHL action he's gotten and is the cheapest player on the roster right now, and isn't due any bonuses.