With all due respect to Mangala, a player whom I think would thrive in a more defensive system, is simply just too unreliable in this City team with the way Pep wants his defenders to play.
The second he is to receive the ball, the Leicester players, in particularly Vardy, will have a field day closing him down and isolating him.
I don't know what is to happen if Stones or Otamendi get a lengthy injury, however I would seriously start looking now if someone like Danilo or Walker can slot in there.
I feel weakness will be shown by us the minute we get a long term injury to one of Stones, Otamendi and probably more importantly: Fernandinho.
It's what they offer in regards to ticking the team over and providing an effective build-up that is crucial to the way we play.