Not sure spending our scarce funds on another defender is the answer to our problems. This seemed to be Coleman's main strategy, resulting in us having a squad strong in numbers, but made up almost exclusively made up of centre backs.
We could arguably use a defensive midfielder to protect the back four. However our priorities have to be creatively, we need a midfielder who can link up with the attack and in all liklihood another striker. After that we could think about a M
Makalele type and possibly cover for Hussey.
I don't know if Zorro is left sided, wikipedia wasn't clear, if Thorne's interested I assume he must be. But I'd still assert that we've got much more pressing priorities.