Enzo Maresca is building something great at Chelsea incase most biased football fans dont see it.
In his first seasons as the manager he won the FIFA Club World Cup, Conference League and got a spot to participate in the Champions League. Tell me if he isn't doing anything good? I could remember how many made mockery of him, by calling him "a fake Pep Guardiola" even some so called Chelsea fans were among the haters.
Frankly speaking, the Conference League, the top 4 in the Premier League and first place in the Club World Cup are not the achievements that can be called incredible or prove anything. According to bookmakers, Chelsea will face the same fight for the top 4 next season, they are not in the pool of title contenders and no one will be surprised if their next season is less successful than the last one. For example, due to the fact that in addition to the Premier League they will have to concentrate on the Champions League (which takes away more energy than the Conference League).