This is a stupidly over reactive proposal due to a player slumping.
At his worst Ehlers is still a 60 point winger.
Ehlers is the main reason the 2nd PP is not producing. He can be replaced on the half wall by either Petan or Perreault. His top 6 minutes goes to Roslovic, who is dynamite with Connor. Probably good for 20 goals/50 points with an increased role. Giving Suess and Veselainen room to grow behind them.
Leddy fits perfectly with Buff. He's not a top 2 defenseman on the Jets but he gives them legitimate 45 minutes of strong defense, like Nashville, Colorado, Minnesota, teams we need to get by.
Niku is the injury replacement for Morrow, as neither kill penalties. Whether it be this year or next, he's still not a top 4 d-man on a serious contender, that's pretty obvious. I think the Ehlers fanboys with their advanced stats get carried away.
Ehlers would look good with Barzal and Eberle.
Leddy makes the Jets a solid all around team. And gives the kids behind him room to move up. Which benefits our salary cap, trying to sign Laine, Connor and Morrissey long term, and holding out hope for Trouba.
The Isles get to rebuild their defense. I think they need a true #1 down the road to play with Pulock. I don't know enough about Pelech, but their 2nd pairing has been good.