Potter is never the best for Chelsea.When the news came that Chelsea's management have changed their coach,I was shocked because we are talking about Tuchel that has taking the UEFA champions league for Chelsea,and knows the best for Chelsea FC,they brought in a coach that cannot coach a big team well.
I so much believe that Chelsea's board will ever regret sacking Tuchel,because he remains one of the best coaches that Chelsea has ever had.
The new coach has not been at Chelsea long and trains the players as they are at Chelsea, so it is too early to judge whether a coach is good or bad because each coach needs time to prove his ability to train the team to be better. There is no coach who enters the team today, then immediately wins the next day. Coaching is a process to win a championship and it definitely takes a lot of time, so what you rate today for Chelsea, in my opinion, is still inadequate because Chelsea has not replaced a coach for a long time.