I can understand Allegri picking the midfield he did today. Sevilla were always going to A) press very hard and B) take it down to the trenches, so it makes sense to opt for a more physical midfield, rather than someone like Hernanes or Pjanic who are more likely to be caught out by the press.
Unfortunately it didn't work, but let's have some perspective. Sevilla will be our toughest games, and we restricted them to no chances and really could have scored a couple ourselves (Alex Sandro, Higuain, Khedira x2).
Sevilla came to disrupt our game and take a point. They did it very well, fair play to them. I'd have introduced Pjanic earlier, and started with Alex Sandro, but it's not the end of the world.