There is zero reason for the Ducks to consider this. OP, you are thinking purely from a Jets-centric perspective. You are having trouble signing Trouba, already have Byfuglien and Myers on the right side, so naturally you'd love it if you could swap Trouba for a clearly better defensman who plays on the left side. However, from Anaheim's perspective:
- There is zero reason to downgrade from Lindholm to Trouba, and it absolutely is a downgrade, and, in my opinion, a very significant one. Lindholm finished the last half of the year and the playoffs basically playing as a genuine #1 defensman. I'm not a fan of either team...if you asked me who I would rather have, it is Lindholm, and it's not even a debate right now.
- If they can't sign Lindholm, which is the sole reason he would ever be available, why would Anaheim want another contract problem coming right back? It's not as if Anaheim even needs a right shot defender. If this trade went down, they still have a ton of problems (so likely Despres if not Fowler still have to go, both LD), and Anaheim already has Manson and Vatanen on their right side.
- If Anaheim is trading a young near #1 defensman, pretty much one of the most valuable commodities in the league, why are they not addressing their current biggest need; a top LW? Your untouchable list becomes pretty ridiculous to me in that light.
It's a very poorly thought out proposal. It basically seems to be a Jets fans' wet dream and banging a square peg into a round hole for Anaheim. Any attempts to justify it for Anaheim without them also getting a massive addition (Ehlers) are pretty much also inherently ridiculous. No, I'm not going to get into the debate of "but he's only a little better, he's not worth that much more!" There simply is zero reason for Anaheim to even consider this otherwise, and if you can't see that, I'm not going to bother trying.