I might get attacked here for my view's on Potter, but I will give it anyways.
Theoretically with the players we have, Graham is a great choice for our team. However, although he is doing great with Brighton which I give him 100% credit for, the problem he will face with Chelsea are all very similar. The problem is that he plays the 3 CB system. With Brighton this is not a problem because team's do not sit back and defend hard against Brighton. Their games are much more open then they would ever be with Chelsea. He will face very similar problems as Tuchel has, which is a lack of creativity in attack due to teams finding out the system and sitting back. This same problem arose also with Conte when he was here. The system is not great once teams know how to counter it, which is simply defend well and wait for the counter attack. The same problems will happen again with Potter because he entails the same Tuchel formation and style of play. This will again not translate well at Chelsea because teams will as usual, sit back and let us create absolutely nothing. Then wait for the chance at the break to hit us hard and win points.
This is why I am against Graham Potter. He will face the same lack of creativity problems as Tuchel has. I am very certain of this. Potter is a great tactician, but not at the same level as Tuchel is. If Tuchel ended badly here, what will the difference be with Potter? Nothing. He will simply get the same in a year or year and a half sadly.