One could also say that the goal was caused by arrogant play of the entire team. With such total domination we showed before Chievo scored, we owed it to ourselves to create more clear cut scoring chances.
Bad marking on the Chievo goal from Bonucci, though, but there was plenty wrong with that goal - from the collective lapse in concentration, to Cuadrado's lack of pressing the guy who crossed, to Bonucci and to Woj's positioning.
We need to wake the fuck up. Bonucci isn't the only reason it's tied at 1-1.