If we are talking about history every Potter season went the same way, pretty good at the start and end of seasons boring non scoring non winning low points in between. There is no evidence this season wouldn’t have gone the same way if Potter to Chelsea had never happened.
I don’t think it’s as easy as that otherwise there would be hordes of successful coaches/managers. I can see Potter is clueless playing with wingers. Their £80m winger hardly touched the ball where as Mitoma/March see a lot of the ball.