Upamecano is better than Fernandinho? I really do NOT believe that at all, I don't recall many mistakes, if any, solely from Dinho this season. A lack of intensity and aggression (controlled) in our pressing with Rodri still getting accustomed to the league, Silva's drop off and Mahrez playing more frequently has caused our defence to be more exposed than in the previous two seasons. The last person to point fingers at is Fernandinho.
I agree about Stones though, completely. When he does make mistakes it's highlighted and people only talk about the 1 incident rather than the other 89 minutes he's been doing well. I'd prefer to persist with Stones and hope it eventually clicks, than spend £50m on another CB with the exact same problem, especially when we have Dinho to step in if he's not performing and Garcia who I think could be better than both in that position long term. That said if Stones backs off and fails to put in a challenge when he's 1v1 ever again, I may drag him off the pitch and beat the living fuck out of him :)