I am tempted to back this guy no matter what for 2 seasons. But his 3rd season would need to bring major return. That would be a must and non negociable for me. I'd like to see what he could do with a packed 100k crowd in big games 2 years from now.
As long as players believe in him I don't see any reason to replace him.
Players like Yamal, Gavi, Pedri, Balde, Cubarsi, Olmo, Casado would all need to flourish under him. There is no miracle signing spree for us like those loaded EPL sides.
I believe we established a good progression from Koeman, to Xavi, to Flick. It somehow fits in well. I hope fans will realize how good we did in these tough times.