Tuchel and Chelsea were a very different team. Chelsea owes even its current ranking to Tuchel. They haven't even won a single win in their last 5 games. They got 3 draws and 2 losses. They lost to Borussia Dortmund in the Champions League as well. Chelsea is still going downhill. If only Tuchel had been given this opportunity, which was given to Potter.
I do not know why Tuchel was not given more time. He was a fantastic manager before he joined Chelsea and was more decorated then Graham Potter. Potter did a good job with Brighton but as Brighton has proved it was the players at Brighton instead of only Potter. They are still performing well without him. Tuchel had success with Chelsea too he got them playing good football and were performing better then they are today. I wonder if it is possible that Chelsea offer another chance to Tuchel and if he would take it because of the way they treated him.