Enzo Maresca must make changes to prevent himself from suffering the same fate as the previous manager. Chelsea really wants to return to the peak level that was achieved when Abramovich was still in charge, but transfer policy factors and inappropriate selection of coaches make it difficult for them to develop their quality. Enzo Maresca will face various challenges in his first season because there is a lot of work to be done, the squad left by Pochettino needs to be polished again to show its quality. Management must be patient with the situation that is happening to their team and provide support to the coach to rebuild the squad which has experienced a decline in performance in the last few seasons.
How dumb were Leicester City to sell Maresca to Chelsea, they were exited from the Premier League last 2 season and Maresca was hired and bought them back this season to the Premier League and they couldn't increase his pay check to stay with them through the thick and thin and they dash him to Chelsea, this is why I have no doubt about his performance in Chelsea, he is going to do well more than what all these past coaches has done for the club.
All of the men that has worked with Guardiola always turnout well, Arteta was able to defend Arsenal and build a strong foundation of players, Maresca is capable of doing to the same thing. He instructed Enzo Fernandez not to play Copa America and request him to come together with some other clubs, I don't know what his plan was but he got some big surprises in the bag. I'm more interested in their friendly match with Real Madrid and Manchester City before the beginning of round 1 matches for the season.