We have not seen any changes in Manchester City's squad. Even then, Manchester City's performance is weak. Especially despite the fact that there is no change in Manchester City's defense, City's defense is very weak. Last season, Manchester City conceded 34 goals in 38 matches. This season, Manchester City has conceded 25 goals in 17 matches.
De Bruyne faced injury at the beginning of the season. Due to this, City's performance was a bit irregular. De Bruyne is now with the squad. However, one of the most important players in City's midfield, Rodri, is out of the squad due to injury. This may also be one of the reasons for City's irregular performance.
Man City is in such a weak condition at the moment and maybe they are in a bad season in the Premier League and in the Champions League. There have been no changes made by Pep Guardiola after they suffered consecutive defeats and even he lost his best ability to create a more convincing strategy to win. Haaland is starting to have difficulty scoring goals and not to mention seeing their defense area which has been so weak for the previous few matches.
De Bruyne also did not perform optimally because even though his presence in the team did not give a good effect. I think this is a season that will make Man City slump and it is difficult to restore the players' confidence to perform better after suffering many consecutive defeats as experienced by Man City.