Firing and bringing in a new coach is a risk taken by Chelsea. Don't be surprised when the sacking doesn't produce better results than the sacked coach will become a conversation that will corner Chelsea for making a decision too quickly. Also vice versa if the dismissal produces very good results then they will be given credit for doing something very right.
This has already happened between Thomas Tuchel, Chelsea and Graham Potter. Now the best choice in my opinion is to continue to put faith in Graham Potter. And also give him the opportunity to freely get several injections of new players, even with the limitations that Chelsea are currently experiencing.
With dismissal already a decision for Chelsea's management, indeed there is always someone who is cornered because the dismissal was too short when Chelsea lost in the Champions League, but what management might be dissatisfied with Tuchel even though he is a great coach and gave several titles to Chelsea.
The hope for the future is indeed in Graham Potter, even though there are many twists and turns that Chelsea have experienced in the Premier League, but of course, it all takes a long process, it has just started for Graham Potter, at least in a few seasons he can show Chelsea about other support, indeed it will Potter needed to choose the players he would recruit.