Chelsea is still working in progress so Chelsea should concentrate on getting a formidable team can can be consistent just as you have said Chelsea biggest problem is the way and manner that they change coaches and this has affected their style of play, it will take Chelsea two to three years before they can get back to competing for a major title race
Chelsea's problem isn't just with the manager; some of their players also have weaknesses, so Chelsea must address these if they want to challenge for the Premier League title next season. However, in the near future, Chelsea must focus on winning the Club World Cup, as the opponents they face are quite formidable. Chelsea will need to significantly improve their strengths for the final. Therefore, the current manager must prioritize this, as it is a crucial final for them to win before they can enter the Premier League next season.
you have just spoken nothing but the truth, but trust me Chelsea fans will still argue because that's what they are good at arguing over nothing without even trying to figure out the angle the person is coming from. Chelsea problem is not just the manager there are some players that need to be address in the team, because those players are weak and they need to wake up, because if those players are not address it might weaking the team next season, for the final between Chelsea and PSG that match will be tough for Chelsea and even if Chelsea will win the PSG it will be by luck, because PSG performance is beyond doubt, and for PSG to win that final it's sure.