Firstly I will say I don't think it is essential that we sign anyone, I think we have a good enough squad with a good mix of experience and youth. However if we did need to improve one position it would be centre midfield.
Ozil, from what I have seen of him, would fit the bill perfectly and could be that creative spark we need in midfield, that is what we have been missing. I have hoped Anderson would have come through and play his natural role, but with his injury problems and increasing party life style I have given up hope and maybe it is time for SAF to bring in a replacement.