City don’t really have any leaders, neither do Liverpool or Arsenal.
But yeah all that should be common football sense, it’s not really a captains job if the captain is a midfielder (like Pobga is) to organize a defense and to move players into different areas of the pitch, it’s the managers job first and foremost, so i blame Jose really as it went on for good 8 mins or so and never got sorted even at the end, all the captains job is to be the voice of the manager 'on' the pitch.
I get where you are coming from though, the defense itself should know exactly how to patch up as they are specialists in that area but we never did, Rio/Vidic and Bruce/Pallister it would have been.