Two big moves: Fiala, Chychrun aimed at competing now when your only prospect established as playing a core role for more than a full season is Mikey Anderson and when your 1C and 1D are well over 30 probably isn't the best timing IF this is indeed a rebuild and if you're giving up Clarke.
But I guess it was always intended to be a retool. If Clarke is the return, then the entire thing hinges on Byfield replacing Kopitar within 2 seasons and becoming a 1C (or pulling a 1C from elsewhere, highly unlikely). Neither Kopitar nor Byfield are good enough now for them to win this season and Lizotte probably isn't a 3C on a championship team either, nor is Copley a starting goaltender. That's with or without Chychrun. Also, with Kopitar getting older and Byfield being as raw as he is, this almost certainly won't happen even next season. The first time you might get that kind of look with Byfield is just about the time Chychrun's contract will be close to ending or already up.
I think the paradox of Blake's management is that on one hand we complain about how passive low-risk it is tactically, but on the other hand, strategically speaking, this retool is basically hanging by a thread and quite high risk. If they deal Clarke then it's all on Byfield to become a premier center within 2-3 seasons. And if that's closer to 3, you have to hope Doughty hasn't fallen off a cliff by then because you don't have Clarke (or anyone else) to replace him as the #1 high IQ RD, Durzi is a stretch in that role as is probably Spence and Clarke might not become that (a risk with any prospect), but with Clarke you at least have the projection and open-ended possibilities that match with Byfield's age.
When you think of it, if Clarke for Chychrun is a thing, then this kind of plan would actually be razor-thin in terms of working out.
I understand the appeal of it though. From a "real-world" perspective the current management will have to do something. If you don't, you kind of admit the whole Danault, Arvidsson, Fiala etc. acquisitions don't make sense. They've put themselves into this position first by trying to compete with the old core and losing time (and probably value on veteran assets) and then by trying to balance between satisfying old Cup veterans and rebuilding at the same time. This weird in-between lane they've driven for years will eventually force them into a commitment once the road runs out.
There are a number of ways to play this. I think moving Clarke for Chychrun would be a mistake when taking into account the state of the team and the timing of it. If you do that, you've basically narrowed down your future to needing to perform Byfield as a premier center before Doughty declines and hope Chychrun is happy to resign here. And you still need to get a starting goaltender and a real 3C in that same timeframe. That's a 2-3 year window for all of that to happen. Thats a razor thin margin on all sides.
I think there are better ways to play this. I would try to move a surplus core young piece or package for a LD young-ish or mid-age equivalent. If you keep Clarke, then the LD can be a secondary core type, you don't need a Chychrun level star. Until you can do that, you can opt for placeholder low price vets. The main difference is keeping Clarke gives you flexibility now and in future. Whereas a Clarke for Chychrun trade would really narrow the way the Kings can proceed forward and put undue stress on the entire structure to basically come together and perform within 2-3 years. That wouldn't be an issue if the team had established young players at key positions like Lombardi had, but as it is...this plan could only work out at paper thin margins.
From a real world perspective, I understand the management group might be pressured into that, for every Poile there's 10 GMs (and their staff) that get fired when you're moving into 5+year territory of not bringing the plan to its final conclusion.. But I am not sure a move like this is the best thing for the organization to do now. I don't think the paper-thin upside and the push to make it work within 2-3 years is worth losing the flexibility, given the lack of established young players at key positions.