The main reason for Chelsea's poor performance last season was due to internal conflicts within the club. The club has changed ownership. They changed coaches. Due to these various reasons, the internal condition of the Chelsea club was messy. This has affected the performance of the players. The performance of the players was erratic. And the coach wasn't able to help. And so the Chelsea management is preparing long before the start of the season to improve the performance of the Chelsea team in the next season. They have appointed a new coach. We don't know yet if Coach Poch can succeed. Adding more experienced players to the attack will probably make Chelsea's performance more dynamic.
Chelsea's last season's poor performance was because of so many factors. They wasted close to $600m on the wrong players. The new owners thought that buying new players will give them the result they desired. Without proper planning they went on a buying spree, getting any player not considering the piece tag. They also got an averagely experienced coach Graham Potter to manage a club that was far bigger than his capacity. Selection became a problem and many key players like Mason Mount were left out of the first team. The club's performance began to dwindle and there was disaffection between the players, management, and coach.
But it seems the club has learned from its mistakes and is willing to make amends. The signing of Mauricio Pochettino is a step in the right direction. And he has helped to restructure the team by allowing many players that are not part of his plan to leave not minding how much they have cost the club. New players have been bought and their performance in the preseason has been encouraging. For the first time in a long while, we have seen Chelsea playing offensive football and getting some good goals.