If the players in front of the defense are soft, i.e. knocked off the ball easily, not so good at keeping it when they've got it and no good at working to win it back, it means the opposition see too much of the ball, resulting in the back line being too often exposed.
And yet Coyle played the exact formation you picked in your "strongest fit 11" and several of your players - Tuncay, Mavies & Eagles.
I'll say now what I said then - we are way too open because Coyle is so desperate to accommodate Mavies. He needs to ditch Mavies and play a five man midfield consisting of three central defensive players.
Until we stop conceding so easily we can't hope to get out of this mess. Shore up the defence and we have half a chance.
He could then play Eagles and Petrov/Gardner on the wings and hope Klasnic (if fit) can pinch something.