The unlikely Villa clean sheet lasted just past halftime. The 5 man defense of Aly Cissokho, Ciaran Clark, Joleon Lescott, Micah Richards, and Alan Hutton were able to uphold an image of legitimacy in the first half, but even the most optimistic of fans must have felt the flood gates about to burst. And burst they did.
The collapse began with a neat piece of City play finished calmly by Yaya Toure in the 48th minute, to be followed less than two minutes later by a goal from Sergio Aguero. The goal would be more accurately credited to Micah Richards, who cleared the ball directly off Aguero, who didn't know what had happened until after the ball was in the back of the net. Aguero scored again 10 minutes later after losing Micah Richards once more, and City's onslaught was finished in the 66th minute as Raheem Sterling got on the scoresheet. It could have been even worse after Ciaran Clark gave away a penalty, but Sergio Aguero, looking for a hat trick, was kind enough to put the ball off the post.
Villa's only attacking moment of note came in the first half when Jordan Ayew ripped a snapshot to Joe Hart's left hand side, but the England international made a smart save to keep Villa from going 1-0 up. Micah Richards had abysmal game even when measured on the Micah Richards metric scale, while Brad Guzan actually made a string of very decent saves in the first half, keeping this scoreline from complete embarrassment.
In summary, this was exactly what we have come to expect.