It would be extremely unfortunate if Chelsea fired him after he had made slow progress again. I'd prefer to keep him for another season. Tod Boehly is at the root of Chelsea's problems.
Keeping someone that barely has over 50% win rate in his managerial career so far in Chelsea? thats crazy. In fact, he only maintained 51% win rate with the club because Chelsea has a decent squad to begin with. If you let him handle a club ranging from 8th to 14th place, he would have less than 50% win rate for sure. Obviously unless Chelsea has someone better than him right now, there is no reason to boot him out yet