It's a normal thing in the end because after all, with a different scheme of play, there are bound to be players who leave and come to make Enzo's ideal line-up and it's definitely not going to be the same as what Poche did before.
This is one of the reasons that too many transitions lead to money being wasted and players coming and going so quickly that performance becomes unstable as a result of the season after season, which damages the chemistry that is actually being built.
At the moment, Enzo Maresca's actions are not as extreme as the previous coach but seeing from what is happening now, the reshuffle will still be done especially by looking at the friendly matches Chelsea did, they actually don't have a good thing to be proud of before the new EPL season starts.
Management policies can indeed affect performance and the race for trophies but in the end there are people who can be held accountable when the season is underway, namely the coach's job, although not everything must refer to the coach but still when we talk about the performance of a club then the coach will be in control of it so that when a club fails then it is clear that the coach's scheme is not good enough who cannot maintain consistency even though previously there was a role from management who was responsible for not being able to find a suitable coach for the club they had.