There are a lot of generalisations and assumptions in your post, but no plan B. We "can" dot his, we "can" do that, but what do you actually propose? And apart from the occasional d**khead, how can you even say "the fans" don't want the team to succeed? If "the fans" actually don't want us to be successful, then there would be a lot of contented posts here, wouldn't there. Yet all I read is frustration, anger, and fear for the future. Specialists in failure, you gotta be kidding me.
This is your problem, you are always asking for something different. If the team is winning, you still want to change the team. A team is doing badly, I'm proposing the right thing we should do, instead of allowing us to do these right things, and let the team remain like that, you are already thinking that when the team starts doing well, what is our plan B?
Let the team starts doing well first. Let them continue that way, don't change them, if a system is working, don't change the system. Some people know the right system that should work for this team, they just want to use another system. That is why I say so many Chelsea fans are dumb, and I say they are specialists in failure.
You just want to be using another system just because you want to change the right system, you call it plan B, when you know the system that should work.
When we won the league under Mourinho and Ancelloti, we used a single system.
Under Conte, we were using a system, it wasn't working after three matches because of the kind of players we had at that time, we changed to another system and stuck with it for the whole season, and we won the league. Even though Conte changed his system, he didn't change his best players, he kept using his best players, that was why he won.
Fans today want the manager to keep changing his best players every match, they call it plan B, you can't win like that. A manager can change his formation, but he must not change his best players, he cannot win like that.