So go back to my original point, you might as well as have Calderon in there as opposed to Barnes if we are that worred about him, he will defend better and gets forward like barnes does.
I want to us to play our normal game, we have a solid defence, and we are as attacking as Palace with as good players. Why do we need to change so much because they have Messi...sorry Zaha.
I hope he does not start on Saturday, not for any other reason than that its a negative team if he does, like the look of CMS and Hoskins up front and let the defence take care of Zaha. You might as well put Calderon in the "Barnes Role" if we are that worried about him, he gets forward as much...