You're right looking at Manchester City there problem has been from last season a problem of creativity especially in the midfield because there is no creative midfielder that is capable of breaking down the midfield of their opponents and distributing the ball to the attack and gladiola did not bring any quality midfielder this transfer window and it's going to affect them this season.
If we talk about Manchester United, we can say that there has always been a problem in the team, whether it is in their midfield position, their strike position or their defense position. I have protected Manchester United's biggest weakness in their finishing position. The players who play in Manchester United's finishing position are not performing well at all and I see them regularly missing many easy opportunities, so Manchester United cannot leave the field with full points in most of the matches. Now if we talk about Manchester United's defense position, then we may not be able to show any such player who is playing the best defense at the moment. Rather, the defense of this team is also quite shaky, the team has relied on older players in their defense and they are not able to perform as expected.
The same problem exists in the midfield, meaning they have bought good quality players, but those players are now quite old and are not able to perform well in line with the younger players.