But there isn't a team that would jump at the chance to trade someone like Sergachev for Doughty.
There is only one scenario to trade Doughty. Toronto keeps losing, they get crazy desperate, and they give you Marner for Doughty. Yet that scenario is even unlikely. No reason for Doughty to agree to go anywhere else but his home town, if he's not staying where he's very comfortable.
The time to trade Doughty was, at the latest, 2018. Before the contract. Should've been done in 2017, if not after the team looked dead losing to the Sharks in 2016. That time is over though. For better or worse, the Kings are stuck with Doughty, and have to mold a team around that $11m.