Basing Napoli on european performance would give a wrong image.
Under cavani they went in that insane "group of death" , and had 3 teams tied, them going out on goals or sth. They were very good.
But they always go like, "fuck eurocrapleague" and bench a load of players, and then arent able to overturn the result.
This year for example, they went out cause in their final round, they played half a primavera team in the first leg. If Napoli with Higuain in this form would take euroleague serious, they could have won it.