Jota has been an immense success along with a few other players for a few other clubs.
Chelsea has bought on paper really good players, but integration has so far failed completely.
Perhaps Jota was always better though.
But we have a very special squad with a very special mood and we have since Klopp came, been masters of integrating new players. Minamino a disappointment apart from in a few games, Keita not stable on a very high level, but he has lately improved a lot (and sometimes he is amazing). But we have managed to make even tertiary youth reserves seem like stars on occasions. I don’t think that is just because they are really, really good. Our management and integration, the very mood and spirit in our squad, also undoubtedly plays a great role, as does the fact that we play in a clear system almost always, so everyone knows what role they are supposed to play. That helps a lot.
I do think Chelsea lacks a lot of these very positive factors. But it is of course hard to say, I am not an expert on what is going on inside Chelsea to put it like that.