You can't compare Chelsea to Manchester United from the fact that it has been obvious especially during pre season that Chelsea defense is wack while Manchester United issues goes more than being the defense but all part of the team there haven't actually been a notably growth from them but their coach is too blinded to see, all because of his shameless pride but like they say pride comes before the fall.
Enzo Maresca's defense choice has a lot of scrutiny but I won't judge more till next season or January let's see if there will be an improvement at the Cb especially
Comparing Chelsea with Manchester United at this struggling time is not a bad idea the only difference i see between them is that one has just newly employed aa new coach and the other have been trying to wait and see if their coach can still make a difference after being at the club for more than 2 seasons now. Both teams are struggling with their defense and are also struggling to see how to work the attack out and bring them back to form which i think will be difficult. In my opinion i still see Chelsea to be a better team and with the new coach at hand they are ambitious and we can see aa difference soon, Chelsea’s defensive line is still not good enough at the moment but i believe when given time they can improve and become a solid back line in the league, the new coach is trying to instill an advanced playing style to make them better which is at work already and progressing gradually in just a few months we can already see the difference the new manager is trying to make but the same cannot be said for Manchester United.
Manchester United have been with Ten Hag for about 2 seasons and we aare still yet to spot a difference, nothing is improving and even the new players bought are not picking up, they signed more players but I don’t think there will be any difference if the manager doesn’t come up with a playing style or teach them how to play effectively. Ten Hag needs to put in more effort to bring out the best in his players because he has quality players too and they should be able to perform better than this.