Apart from very little patience, Chelsea management made a big mistake when appointing Pochettino as Tuchel replacement, they should have seen the situation that occurred at that time from a positive angle. Pochettino is not an accomplished coach, he was often fired due to his inability to handle the club according to management's expectations. When clubs often change coaches, the players have to adapt again to the tactics and strategies used by the new coach. The club will also be greatly disadvantaged by having to pay compensation from the remainder of the coach's contract.
Don't put all the blame on Pochettino, the players are also part of the failure Chelsea has face in the last seasons. When Pochettino was quickly used to replace Tuchel, the team was average and they were doing well because Tuchel understand them and knows when to manipulate opportunities into shorts on target that can bring goals but when Tuchel was sack, Graham potter and Lampard couldn't do anything good and Pochettino do some reshuffling and that doesn't change anything either.
Enzo Maresca who has just received the trust of Chelsea management, must be able to make Chelsea appear consistent. Management has high hopes for him because he is amazed by the achievements he has just made with Leicester City. His first season in charge of Chelsea may not go as desired because the level of competition in the EPL is very competitive. Management must be patient with Enzo's work because the success or failure of a coach is seen when he enters his second season managing the club.
I hope he do something unique here. Luton Town, Burnley and shuffle united did well in the last 2 Championship division and were promoted to the Premier League but end up relegated again because it was so hard for them to adapt to the division but since Chelsea has always remain there, it will be easier for Maresca to use his boys to change the position of Chelsea this season in the Premier League, 4 place or higher place wouldn't be bad for the team this season.