Quoting: justaBoss
Kopitar is untouchable because he's the face of LA franchise and he's playing on a great level. Yeah that NTC is a thing, but honestly LA doesn't have any reason to move the guy in the first place.
As for Doughty...I wouldn't call him untouchable. Yes, that NTC of his makes trading him a problem, but honestly I think the issue is more that no team wants that contract in full. It's too long and risky.
This LHD core of yours, assuming it consists of Anderson, Björnfot and Määttä...honestly, you could do better. I do reckon LA is still after strengthening on this department, and honestly one of them could go, provided LA brings in an UFA in a year or two.
It's relatively unlikely that even with Eichel LA would be contending any time soon, but they have plenty of time to look for replacements, should they move Björnfot or Anderson for the guy.
Luckily for LA though, I reckon BUF would be more interested in forwards over D-men. They do have the likes of Dahlin, Bryson, Samuelsson as their young assets. One of Anderson or Björnfot would certainly fit there, but I don't think that D-men is their weakest area.
I meant untouchable as far as an Eichel trade is concerned. I don't mean untouchable in general. After his NMC is reduced to a mNTC next summer, I think the Kings would entertain offers for Doughty. It would take a lot for them to consider moving him though, as he's well liked in LA, by both the team and fans.
Maatta is expendable after the expansion draft this summer. The exposure requirements are the only reason he's still around at all. I suspect once the draft is over, he'll either be traded or waived, as he will have served his purpose.
The Kings still need a 1LD, but they're quite happy with Anderson and Bjornfort as the 2LD and 3LDs of the future. Anderson has been absolutely killing it with the Kings this season, playing big minutes on the top pairing as a rookie.
Trading either guy would set the rebuild back several years. If they do draft a LHD in the 1st round as expected, that player won't be NHL ready for several seasons. While they likely won't be serious Cup contenders for the next couple seasons, they'd like to be playoff contenders again as soon as possible. That's not going to happen if they're playing with Maatta and MacDermid on the roster. I don't think they have "plenty of time" as you suggest.
The Kings have plenty of top-quality prospects to put together a package for Eichel. I think with today's news, the price tag was slashed a bit, but they'd be able to beat out most offers from other teams. I'm just not sure that they should.