For all the quality Manchester City have added to their squad in recent seasons, David Silva remains their most creative and talented player. In terms of technique and intelligence, he is arguably the best player currently operating in the English game.
Silva has had a superb season, but there is a feeling that when he plays in a wide position, like he did in this game, his best attributes are somewhat blunted. Silva can damage teams far more from a central role where he can dictate the pace of the game.
Of course, he isn't an out-and-out wide man in the mould of, say, Jesus Navas. Silva will drift inside and cause damage cutting in from a wide position, but in games like today there is a feeling that City may be missing something when he plays on the left, rather than central and close to the striker.
When both Aguero and Negredo are fit, it seems logical to accommodate the two and play Silva on the left, but with Aguero out injured, why not allow Silva to play in his best role.