Maresca did succeed in bringing Leicester City back to promotion to the Premier League, but the competition in the Premier League will be much tougher because there are many strong teams here.
Becoming a coach of a top team is also not easy because he will feel a lot of pressure. Maresca does need support from management and fans, but it depends on how he succeeds in bringing Chelsea to play more consistently.
Maresca's task is not easy and we can see how every coach will experience difficulties in the Premier League.
If he doesn't want to suffer the same fate as Pochettino then he must try to show change for Chelsea.
Maresca is a quality coach, his success with Leicester last season is clear evidence, but what I doubt is Chelsea management, as has been the case since last season, Chelsea management has interfered a lot in the internal affairs of the team/squad so that the coach does not have full authority in selecting players and there is also pressure. making it likely that Maresca will suffer the same fate.
Chelsea management wants instant results, this is truly impossible because all teams need a process and time to be able to revive the team.