We should stick to the facts here. Did PSG over the last years epically fail in the Champions League? In my opinion they clearly didn't. They have delivered amazing fights against all the top teams. It usually never was going to be an obvious loss. Just last season they delivered an epic fight against Real Madrid and Madrid was lucky enough to land the lucky punch and make it to the next round.
In fact, PSG always fails in the knockout round which means the team still has a problem with mentality even having a player who often plays in that round, In reality, Messi and friends can't apply it on PSG despite getting the title on the previous club. So, I believe the problem is just coordination and mental club, if PSG can do in Ligue 1 so I think will not problem to do also in the champions league if the squad reduces self of interest.
Maybe it's PSG's past and I'm sure this year or this season they've learned from their mistakes and won't repeat them again, it can be seen from their recent game that they always get wins with very many points and shows that they are ready to win. to get his victory in the first league and face other big teams when he entered the Champions League.
After looking at the 3 matches played by PSG in Ligue 1, where not only PSG can win 3 matches in a row, but PSG can also score a lot of goals.
Imagine PSG can score 17 goals in 3 games, this proves PSG is very productive in scoring goals. But if we look at the PSG match, we can see
that the cooperation of PSG players is very solid, therefore it is not surprising that PSG can score a lot of goals. After all PSG's defense is not bad
in 3 games conceding 3 goals, but it is necessary to improve the performance of PSG's back line.
What makes me believe PSG this season is much more than the previous season how PSG star players can be controlled by Galtier, which when
Pochettino was still PSG coach, Pochettino was not as assertive as Galtier. Even though at first I doubted Galtier was a good coach for PSG,
but seeing Galtier can make Mbappe and Neymar work well together, I believe Galtier can make PSG play better this season. I'm sure PSG's
performance in the Champions League will improve this season. Moreover, the Champions League is PSG's main target, we will see how Galtier's
strategy is to make PSG win against its rivals in the Champions League.
In my opinion it is waaaaay too early to judge whether Galtier can handle the superstars or not. Let there just be one serious crisis, also maybe some injuries (Neymar and even Mbappe do miss quite some games), then we can see how Galtier is able to get along with tough circumstances. Now winning the first three games doesn't mean much. It is the same as saying Nagelsmann is the perfect man for Bayern after winning three matches. It is not representative when you have a great start when all players are on board, everything is cool and the opponents aren't really that hard.
Let's wait and see what happens when for instance PSG loses the first game against Benfica in the champions league. Or when Neymar and Mbappe are fighting each other again after a loss. Give the season some time to develop!