I would say that only changing the coach cannot be a solution. The coach should be allowed to work independently. And at the same time, the coach should be given the opportunity to form the team according to his choice. For this Chelsea management should prepare big funds and get the required talented players in the team. While Chelsea's squad is strong, the bonding between their players is very weak. Although the coach has changed several times, the bond between the players has not strengthened. So Chelsea's performance was poor. This is why Chelsea should look for new players.
Chelsea have been changing coaches and there is no difference in their performance, so we should know that chelsea problem is not only about coach, even players are part of Chelsea problem. We know chelsea have not been getting experienced coaches since they sacked Tuchel, but also chelsea have just wasted money in the last transfer window, the players they bought those not really worth the amount they spent. Chelsea should just flush out most of their players, they need to get new player’s that are ready to play for the club, chelsea squad currently are just playing independent ball, their is no team work between them.