Even though I also think substitutions were one of the causes of Liverpool's defeat, I can't blame Klopp at all. Because we know that M. Salah is actually still quite susceptible to re-injury. Even in interviews last month or a few weeks ago, we knew that Klopp would try to play their core players more carefully, especially Salah. And maybe Liverpool attach more importance to the Premier League. Although I know Klopp also has ambitions in the FA Cup. But it seems that Klopp also realizes that with so many injured players, Liverpool must save more energy for the Europa League and Premier League matches. But I don't know what is clear, I am also quite disappointed with the results, although I can understand that. Oh yes, Man United seems to be starting to have quite high self-confidence again.
I probably don’t agree, the coach makes a substitution for a reason, if he sees that a player in a certain position is tired, he needs to be replaced, but in this case there is a risk of that, how well the player who enters the field can enter the game. Therefore, I don’t see Klopp’s mistake in the substitutions, he did everything right, it’s just that Manchester United were able to play better at some point, they were just luckier.
Of course, Klopp wanted to win as many tournaments as possible this season, this is understandable, because if you believe his words, this is his last season in the Premier League, maybe he will return to football someday, but he promised that he would never return to the Premier League. In any case, he still has the Premier League and EL, he needs to try to win these tournaments.