It is silly talk what you and Neville are trying to argue. We either need a player or we don't. The argument that we are so good that we might get away with it is a copout.
I can similarly point to the greatness of Messi, or the greatness of Veratti or that of a myriad of other good players and make the same argument you are making. Oh we solo need them, but we might get away with it with our good squad.
Oh and just for fun, take out Van Duke on that comparison chart and insert Otamendi. And then come back and tell me what you saw :)
P.S: I see
@Neville Kneville is not quick to dismiss stats that support his arguments arguments now. Interesting :)