Pep HAS to play these goals to his players over and over again. Say nothing. Just garage them in a room and put it on loop.
Can any of them, the one's who jogged along in the style of the Kolarov textbook alongside the marauding forwards, or the keeper whose positioning and attempts to save were absolutely brutal deny ANY culpability?
Each and everyone of them should give their week's wages to Manchester hospitals.
Harrowing viewing.
For the record, no Pellegrini or Mancini side ever got thumped 4-0 in the Premier League.