People that are making excuses and are content with the apathy show in the last quarter of that match have short memories considering Fiorentina was a week ago. Watch that game and see what happens when you take your foot off the pedal against a side that has some attacking power.
Some make excuses, like we are playing Wednesday, or the game is over, or whatever, but the reality is, it would only take one flukey goal but the opposition when you're 2-0 to change the game completely, and when you're already in the cruise control mindset, it's hard to get back in the rythym which is what happened against Fiorentina and can happen against any team if we're not careful.
If we really want to close a match, a more intelligent thing to do would be to control possession and starve the opposition of the ball towards the end of a game, instead of sitting deep in our own half inviting trouble. Luckily today Genoa were complete shyte, but that sort of tactic will hurt us in future games like it has in the past.