I think Silva also makes the players around him better, Klaus.
He is overrated. While commentators were beating themselves over Bale and Parker, Silva probably put together a more impressive season at Citeh. The attack was built around him. He played more of a facilitator's role than someone who is on the end of things, but he managed the offense exceptionally well. Having Nasri and Aguero around to share those duties will allow him to shine in other areas, such as getting on the end of goal-scoring chances.
I think Citeh have a good chance of becoming the most enjoyable team to watch in the game.