I dont buy into believing something and then trying to convince myself its true.If you think Vinny doesn't make a difference you really need a trip to specsavers mate.
I simply want the evidence to show it. I don't ascribe everything good happening to the presence of Kompany. Especially in light of the fact that these conditions have been seen before in his absence.
He won us the game with his goal. So I ascribe the win to him. But our defense looked like it often has. With or without Kompany. So no. I don't think "the belief" that Kompany makes a difference, has been proven.