I don’t think we can overanalyse his record too much.
Maresca arrived at Leicester, played some amazing football and won the Championship. He immediately earned praise from Harry Winks, who called him the best coach he'd ever worked with (whilst only being coached by him for less than 12 months) - despite Winks having played under Mourinho, Conte and Pochettino. That alone says something about his coaching ability and the impact he has on players.
He then went into a turbulent Chelsea environment and, in just one season, won more trophies than Arteta has managed in over six years. Not all of the signings were his decisions, yet he still managed to mould them into a side that became incredibly difficult to beat. They even went on to comfortably beat PSG in the Club World Cup final - a team who looked almost unbeatable.
When Kompany was appointed at Bayern after relegating Burnley, people laughed. But top clubs are often looking for alignment rather than reputation - managers who fit a clear footballing model. In City's case, that likely means someone who doesn't drift too far from the Pep blueprint, ensuring continuity rather than disruption when the time comes. Maresca has managed our academy side and has been Pep's number 2 - so the club know everything about him.
There's simply too much noise now - too many credible journalists and consistent reports for this to be dismissed outright. I hope Pep stays forever, but realistically he won't. And if he were to win a domestic treble and bow out alongside Bernardo at the end of the season, it would be the perfect ending to an incredible era.