I agree about the possibility of man marking Zaha but that is a tactic that appears to be frowned upon now and not used. I would prefer a back 6 bringing in Goldson and t if Bong attacks they 4 move across and cover similarly if Schellotto attacks that way we benefit with double up cover...
So perhaps swap Kayal for March but I do not rate Kayal as he was great for us in The Championship but since then has not impressed me.in the Premier, when he has played.
My team very controversial I know would be:
Ryan
Schelotto.....Goldson....Duffy.....Dunk......Bong
March.....Stephens......Izquierdo
Gross
Murray
Then tell Gross to fill in as CM or 2nd striker as required