It's not the lack of confidence or false confidence. As someone who follows Napoli you should be able to see how much they miss Hamsik's presence tonight. There is nobody to connect the midfield and attack.
Bologna club is dependent on Di Vaio. We can call him "Offense" at this club. He already scored 11 goals, second on the list is M. Britos with 3 goals and he's defender. So we can say that Bologna team is nothin without their engine Di Vaio.