Seven World Cup Play Off matches have produced seven goals so far with five of them coming in one match. There hasn't been a goal scored yet in the first three second leg matches and the last of the first leg games also finished 0-0. Maybe I'm imagining it, but there seems to be more 0-0s about in domestic football as well which would suggest that sides are going out with a more defensive mindset. However, until Switzerland decided to hold on to their lead for the last half an hour in their second leg, it seemed to me that both they and Northern Ireland were trying to play on the front foot, but, the finishing, particularly from the home side, was woeful, so there might be an argument (which I would agree with to an extent) which says that, if there are less goals being scored, it's more to do with a decline in the quality of finishing than more defensive attitudes.