The issue i see is that the players were dead tired with too much cricket. More cricket will not help them either, they need to have enough rest and not play series one after other and expect to play at their optimal performance. Pakistan is the best team in the tournament and i was checking their preparation released by them and they have a lot of former players like Vernon Philander, Saqlain Mushtaq helping them prepare which is really great.
I don't agree with this. If the players were tired, then the management could have gone for player rotation. On the other hand, the same set of players were retained by Kohli for match after match, despite poor performances from some of the members like Hardik Pandya.