It's not necessarily that Dubinsky and Anisimov were irreplaceable players.
Last year's roster was built for and partially by Tortorella. As such, the roster performed well under him.
This year, though, the roster is a lot different. It's much more top-heavy and there is less depth up front. Sather didn't replace the depth he lost in Prust, Fedotenko, Mitchell, Dubinsky, and Anisimov. He added Pyatt and Asham. He also expected Kreider to be a contributor at this level right out of the gate, as most of us did. He's now in the AHL.
Frankly, I'm done looking for answers as to why this team is playing so poorly. To me, it looks like a team that has tuned out it's coach, but I digress. It's on the players, the GM, and the coaching staff to figure out and correct the problems. All of them.
Yes, and people seem to be confusing poor replacement of depth with the Nash trade being a bad move. You do the Nash trade 10/10 times. The problem here is the bottom six sucks, specifically the third line. They need a legit 3rd C who is a two-way player and has some offense. On a deep team this guy is actually closer to a 2C, but forced to a 3C due to depth. Then they need Kreider to pull his head out of his ass, he needed to be the 2 LW. Callahan would be the perfect 3 RW on a team where Gaborik isn't playing like ass.
The fourth line is actually good, but the 3rd line is so bad it puts more pressure on them to play above their heads. This needs to be remedied for next season.
Move Gaborik at the draft for top 6 depth to fill holes and a 1st.
Sign or trade for the right 3C or let OL/Miller fill it if they're ready.
Kreider has to be ready for the #2 LW, or they have to sign/trade for one.
Trade Boyle or force him to 4C where he belongs.
Pyatt is Redundant and I don't like him at 3LW I'd rather call up Hrivik and give him a shot there.
Make the 4th line Pyatt/Boyle/Powe/Asham/Haley in whatever combination seems most fitting.
Fill in Fasth somwhere if he is ready.
Richards gets one more season.
Hagelin-Stepan-Nash
Kreider-Richards-X (Trade/Fasth)
Hrivik-X (Trade/OL) Calahan
Aforementioned 4th line
A younger team with less experience but far more potential than this haphazard mess. As long as the prospects can step in, filling the holes is relatively easy. If they aren't Sather may use them as chips instead to fill them. I'd rather wait and let the holes fill themselves from within. The only two assets I am okay moving in the off-season are Gaborik and Boyle but only for the right returns and if they have proper replacements for them.
Whatever they do they need to keep getting younger and developing depth from within. No more band-aids. Only move young players who are redundant or not fitting the team identity.