If we compare PSG, Manchester United or Manchester City, Chelsea has the least number of star players. Moreover, the pace of Chelsea's game has slowed down a bit now. In January, Chelsea's management should appoint some experienced players to the team. Their defense is strong enough, but forward lineup needs some improvement.
when compared to other big teams, yes chelsea only have very few star players however When a team has a good depth of squad and team mentality that has been formed, I think big names or star player are not a big deal. and bringing in star players is not always the solution, some players or teams actually need time to adapt, seeing the condition of their squad at the time I think they are still able to compete in the EPL and UCL at the same time.
I totally agree, that just because you have the most big names in your team does not automatically make you the strongest team, it can actually be the complete opposite. Just look at PSG for example, they now have Mbappe, Neymar and Messi as their attackers, i would say that this is probably the best offense that you can have, but still i think that PSG is not better than last year, they are probably worse. One reason for that is, that they now have 3 players that are doing absolutely nothing to support the team while in defense. For me PSG is a bad example for a club that has unlimited amount of money. ManCity does it way better, they have a real team.