I actually cannot pinpoint the problem of Chelsea. I don't know how but whoever joins that team, just loses their form right after joining. I don't know how much they have spent to buy these new players. At first, they got Graham Potter, who could not do much with the squad. And then they got Pochettino who is a successful Premier League manager in my opinion but he can't seem to be doing anything either. I mean their players have quality but cannot show it on the ground. I think the owner's biggest mistake was to sack Tuchel who was doing very fine.
Yes, it is clear that after firing Tuchel, Chelsea immediately experienced very bad performance. Tuchel's replacement coach did not provide a good performance so that Chelsea continued to decline, even though when Tuchel was building Chelsea, the team's condition was not as chaotic as it is now, but since the management decided to fire Tuchel, the impact is very visible now and maybe This could be said to be a kind of curse for Chelsea, I think after Chelsea spent a lot of money buying players this club was able to recover and return to winning ways but in reality the team's performance was still very bad
I don't know why Chelsea management fired Tuchel. It was one of their wrong decisions. Tuchel is a very experienced coach. And with Tuchel's help, Chelsea won the Champions League with a mediocre squad. If Tuchel had been Chelsea's coach, he might have been able to stabilize this team. Tuchel was fired probably because of coach Tuchel's problems with the management. And despite several changes of coach since then, Chelsea's performance has deteriorated rather than improved. Chelsea have now become a relatively weak team. We don't know when we will see consistent performance from this team again. Chelsea's performance is unlikely to stabilize this season.