PSG's weakness is an attraction that cannot be fully resolved because it is not easy to be in a situation where every season you are only motivated by chasing the Ligue 1 title or other domestic titles and that is the reason PSG always lags behind other top European clubs. They only rule in France and when they leave their comfort zone they are no doubt like prey that must be hunted by other great predators.
Using a new strategy in a match such as against a weak Revel team in the Coupe De France competition is not wrong, but of course the results will be different when this strategy is applied against a team that is quite strong or equal. So I think it's not a matter of strategy but more about having fun because a typical big team like PSG only looks great when it's like this and when playing against other strong teams in Ligue 1 they aren't necessarily able to do that.
This is not an easy job for PSG because we have seen in several seasons that they have had great difficulty when facing teams from other leagues, especially in the Champions League where PSG have to admit the greatness of other teams compared to them. And also in the previous few seasons, PSG always changed coaching, which may also be a strong reference that the players must always adapt to various new strategies from the coach. so that the players find it very difficult to show consistency in their performance from season to season.
However, in Ligue 1, of course PSG is still the strongest compared to other teams, making them easily champions every season. If PSG wants to be the strongest in the European league, especially in the Champions League, then they have to learn from Manchester City, namely giving their coach time to build a squad so that it is well organized from season to season. If that happens I think they will be ready to bring the UCL trophy home to Ligue 1.