Personally I think we struggled due to our lack of pace in midfield, Barry had a shocking first half, yet Bob didn't seem keen to change our formation to counteract what was happening.
He did change it. If you were at the game rather than watching online you might have missed it, but the camera was focused on him and you could hear what he was saying to Yaya. Which leads me to...
4. System - Yaya was far too deep in the first half playing almost along side De Jong at times and again whilst credit to Wolves for pressing and winning a lot of second balls, we could have certainly pushed him further forward to make their defence/midfield drop a bit deeper.
It was actually the complete opposite - Yaya was playing too far forward in the first 25 minutes. It meant that Barry and De Jong were getting overrun making it difficult for the back 5 to play the ball into midfield to build attacks; hence the alarming number of long balls looking for Dzeko.
As I said earlier, you could clearly hear Mancini saying to Yaya to drop back into central midfield, rather than the AM he has been playing in recent months. Once this happened we changed instantly. There was an extra man there and we started to pass the ball.
Here is the chalkboard for Yaya in the first 25 minutes, and then the 25 mintues following that:
Its quite clear to see the change and Yaya playing deeper.
This created a space for Tevez to move into, and play what was effectively the Silva role as playmaker, rather than being stationed out on the left.