I think the idea is we should really be defending more from the front. Basically the midfield needs to do a much better job of protecting the back 4, whilst the CB's and Mig will act as improvised sweepers.
I have no problem if we go into next year with a CB team of Agger, Skrtel, Wisdom and Toure. If we sell Skrtel, however, then we are going to be forced to bring someone in.
Given how close we are to the new season, I think we need to start looking at what problems we could possibly solve using the squad itself.
Wisdom is not close to being good enough, he's well behind Coates even. A good performance against some preseason scrubs means nothing.