I tend to agree with the above but would add the rider that Porter had a chance to put us level at 1-2 and completely fluffed it.
Mind you, this was probably due to the angle from which the cross came towards him. Kirk should play on the right and cross at pace onto Porter's head. As it is, Kirk is cutting inside from the left and his crosses are coming over Porter's shoulder, a very difficult angle to head effectively. We need more crosses where Porter is facing the goal like that from Bowery.