I guess I'm a "drink the cool aid" guy, but I continue to think that improvements internally should be expected. I've seen a lot (and added to that) about down years from KJ, Voronkov and Monahan. Why would we not expect a better year from Monahan? He's been so much better in his career than he's looked last year. So I would expect a bounce back from him. he should be a 60+ point player without question. KJ, while less history than Monahan, is not a 22 pt player and should be at least a 50+ point player. Voronkov may just be what we've seen - a half season player. I dont' think anyone would disagree he's a 20-25g guy and 40-50 pt guy, but needs his minutes curtailed and better conditioning to say the least. May not get that... Those three are the ones we've talked about the most and the return to even average level play would be a dramatic improvement.
That said, I don't think we've mentioned Marchenko enough. He was nearly a PPG player so it's hard to say he had a down year, but I personally think he underperformed. There is no reason he shouldn't be a 35+ goal, 80+pt guy. Yes, he wasn't far off, but I think his play the 2nd half was less than inspiring and maybe he's had to learn how to play in pressure games in the NHL. I expect more from him and suspect we'll get that this year.
I don't think I can qualify these as "ifs" since Monahan and KJ have been there and should be expected to be better. Marchenko has shown he's a top line guy that should score more. Vornokov is a wild card, but just getting back to expectation for 3 of the 4 is a big step forward.
All that said, we absolutely benefited from Marchment and he needs replaced (I hope wherever he goes he drifts back to Kraken level play

). We need an upgrade on the 3rd defensive pair as well. This does not make us a Cup contender, but I don't see a thought that this team will be worse. Any team can suffer down years from players. CBJ had multiple. They truly need another top 9 player that can contribute offensively and help with special teams.
Big week ahead to add, but bigger off season for the underperforming assets.