11 behind the ball isn't the whole reason. We were never short on chances, just people who could put them away.
This season Sterling looks far more confident, so hopefully he can boost his tally. If Pep can add confidence to Silva when he is in front of goal then he may do the same. When Aguero arrived, he never seemed to miss the target though he did , of course. He certainly seems to miss more chances now though and being under pressure from Pep and Jesus seems to have made him edgy, the total miss kick and the one on one against Brighton being possible examples. I deffinately think we need a back up, just in case. Also, we were unlucky with injuries the last two seasons , if we lose Sergio or Jesus we may be screwed without cover.