The issue with Chelsea has always seemed to be that the players mutiny if they don't fancy the new coach. It almost needs the owner to hire someone with the brief of...get rid of anyone you want, bring in whoever you want and you won't get the sack no matter what results happen for the next 2 years.
I have limited bandwidth to follow their results but they've brought in Enzo, Caicedo, Chukw..something...and yet Connor Gallagher seems to be their best midfielder. I think given time Poch would eventually get it right, but I wouldn't be surprised if he's gone by Xmas and the next bright hope (de Zerbi?) is offered the poison chalice.