Well some people say KDB is the key to Manchester City's game, and that's true because when they lost this player, Manchester City slipped a bit. But in a short time they were able to overcome it.
However, when Rodri was lost it was more pronounced, I don't mean to compare the two, because they both contributed. However, some people started to say that Rodri was the key to Manchester City's game.
Both player's are exceptional player's in Manchester city but let not compare because kdb has been the main engine room of Manchester city and I don't personally think that it's because of any of the players that they are currently struggling yes they players have there influence in the team but looking at the city situation critically I can say that they have been in their peak for a while and it's natural that they will experience this kind of situation so it will take a while before they will get back to their former glory, because even if Rodri come back today Manchester city is going to still struggle
You are right, they were at their peak, especially when they won the Champions League for the first time, that was their peak. Well after that the decline was felt, and this season it is even more visible.
I am afraid this has something to do with the psychology of the players, I mean when they are at their peak, sometimes they do things they shouldn't do, like underestimating opponents and so on, and psychologically that can happen.