Let me tell you something more. We think that big players have the main impact, but honestly for me the player's behavior is everything, whether he was a lay player or a star player. like if the player of a  team is doing the team play not a individual or self progress then probably their team would succeed, and on the other hand if a team have star players and everyone is struggling for their own individual performance then obviously then would be failed. i.e PSG.

When Messi, Neymar and Killyan Mbappe was at PSG, everyone was arguing that PSG will win the UCL but the fact is that they failed to win because Killyan Mbappe was selfish player and all the time he only prefers his own individual performance.....