Maresca is a coach who is rising to fame after successfully bringing Leicester promotion to the Premier League.
And the squad that Chelsea currently has is the fault of the Chelsea owners, they spent a lot of money on players who don't have good quality/worth the price so we don't need to talk about that anymore.
We'll see later how Maresca builds this team and what the role of Chelsea management is to support it, whether it is the same as before or will be different, if it is still the same (lots of interference from management in recruiting players) then Maresca will be the next victim (the coach who was fired ).
I don't mean to belittle this coach, but we shouldn't forget that either. The reason is that when all opinions say maybe he will make Chelsea better, then maybe the opposite is true. There is nothing wrong with hopes or expectations, but we must also always remember the worst that might happen.
Actually Pochettino has built the foundation for Chelsea, but management is not giving him another chance and if Maresca can continue what Pochettino has started, then I think they will be able to give a better performance, but once again we should not be lulled by situations like that, because everything that happens will be different from what was expected. Chelsea themselves must be prepared for all the possibilities they will experience in the future.