As lame/boring as it sounds, I think the Blues should stand pat for a bit longer. I think any team deserves 30 games into the season before making franchise-altering moves and committing to a tank when expectations were to compete that season. I don't expect this team to turn it around and win enough games in the next 2 weeks to save itself, but it is possible and I don't see the rush to tear things down now instead of 2 weeks from now. Any trades for guys like Steen, Petro, Tarasenko, Schwartz, etc will still be there in a few weeks and guys sold as rentals will likely have more value at/near the deadline than they do today as teams have a little more cap flexibility.
Assuming they don't win 4 of their next 5 and keep themselves vaguely alive, then I'm in the retool camp.
I don't think Allen is our biggest problem, but we should be looking to upgrade him. He posted perfectly average numbers for the month of November (15th out of 31 goalies with 7+ games played in SV% with a .917) and the team still looks like a disaster. He went 4-5 in that stretch, which suggest that this team currently needs more than just average goaltending in order to turn it around. Goaltending is an area to address, but I don't think the solution is "anyone but Allen." I doubt that we will find a true upgrade mid-season as there aren't too many teams looking to move a decent goalie with term during the year. For this season, I'd waive Johnson and get Binny up here to give him a shot at the NHL. I don't think Johnson would get claimed, but having him mentor Husso in the AHL isn't a bad situation. If someone does claim him, fine. Getting his cap hit and salary off the books completely isn't a bad outcome either. Binny has earned an NHL look for a team in the gutter. He's outplaying Husso and is 25 years old. One of the few silver linings of being a dumpster fire is that it should allow us to see what this kid can do at the NHL level.
Other than that, I'm exploring trades for most the guys on the roster. My level of aggression/desire to move guys varies by player, but very few would be off limits. ROR is probably the only truly untouchable veteran in my head, but I would have to get an absurdly good offer to trade 91 or 27. Realistically, no one is going to offer what it will require for me to trade either of those guys. Schwartz is probably on that list as well.
Priorities over the next 9 months:
1: acquiring two 1st round picks out of the next 2 drafts (or more if we trade a true stud)
2: upgrading in net
3: clearing salary/cap both by saving real dollars this season and freeing up future room for extensions/trades/FAs. We probably aren't upgrading in net without spending notably more than the $6.1 mil we currently have tied up in the crease. We're either going to have to buy out/retain on Allen, take on a separate bad contract to move Allen or accept having Allen's cap hit as a 1B to a similarly paid 1A. Every cap dollar we spend in net needs to be accounted for by clearing space on the rest of the roster. Additionally, if we are going to be bad this year, the owners are going to take a financial hit. Offset that as much as possible this year to limit unwillingness to spend money next year.
4: See what we have in some youth. I don't want to rush Kyrou/Kostin if the organization doesn't think they are ready to handle the NHL. But I'm fine giving expanded NHL roles to Blais, Sanford, Barby, and Schmaltz to see how they handle bigger minutes/roles in lower stakes games. I'm also fine giving looks at Mikkola/Reinke/Walman and getting Binny some starts. I'm not saying flood the roster with prospects, but the final 45-50 games should see an increased emphasis in evaluating some younger talent that we are on the fence with.
Unnumbered: examine the front office and coaching staff. Without really knowing anything about the power dynamics between ownership/management/coaching, I really don't feel qualified to speculate on what should be changed, who needs to be replaced and/or who should be brought in. I also don;t think I have enough info to know where on my list of priorities this should fall. However, I think I have enough info to say that ownership needs to examine these areas. They have not gotten the expected results out of the money they have put into this roster and need to figure out why.