Ozil - Do we need him?

[Power n Glory]

Comparisons to other players are irrelevant. OK, he's not as good as Bergkamp but comparing him to one of our best ever players is not helpful.
The thread title is do we need Ozil.
He was our top assister last year and, even with our fairly middling strikers he was top assister in the PL.
So yes, of course we need him.

I refer to other players so there is a clear definition of what we're talking about in terms of quality chances being created. I mentioned Cesc also. Heck, we didn't create anything one to what was created for Cavani last night and I don't know if that was down to our lax defending or just poor application from the players.

I also compare his good run last season to what we've seen from past players. Was it a one off because we've seen it happen before. Can we expect Ozil to produce at that level again?