I would Fire Tre/Burube at the end of the Season, let a New GM try and do an on the fly retool for 26-27, see how it goes. There is not point tanking next season.
If its another tire fire, then look at trading Auston at the TDL or off season and go full scorched. AM will still have 1 full season left with his new team
The real firing that needs to happen but won’t is Pelley. If that idiot is still in charge, nothing below him will improve, even if they shuffle the chairs on the Titanic.
You’re right, they can’t tank next season but they can still make it clear they plan to rebuild for 2028.
Make zero trades that cost picks or prospects. Only sign UFAs that you plan to trade at the TDL. Start asking for lists of teams from all players for their next destination.
I would actually keep Berube but fire Treliving. If you keep Berube, the pressure shifts to the players rather than blaming the coach (again) for the failures of the team. That pressure helps guarantee the players waive and get traded. If the Leafs fire Berube and hire a DeBoer or Laviolette, there could be a mirage of success where they become a wild card pretender.