The biggest flaw of PSG was that they did not have a balanced team. The team was full of attacking power. But there is no use in having really good attacking players if the midfield is unable to supply good balls to the attacking players properly. And of course, the defense was really bad.
If the team actually work well and the players had good communication with each other I don't think most of them wanted to leave the team. And the success was also going to be a lot more from PSG if they just did not act so selfish on the field. After all, I will say that the biggest problem of PSG was not Messi.
I agree, so far PSG has only focused on attack but forgot to strengthen the midfield and back even though if you want to be an unbeatable team then everything has to be balanced
in the transfer market later, I wonder whether PSG will buy a midfielder or not because actually that is what must be the first homework for PSG, if PSG's midfield is strong then their defense will definitely be strong too