Of course not, but I share the opinion that this game was approached in a very weird way by Walter Mazzari. I don't know if this was incompetence by him or underestimation at its best, but how can a team like Napoli underestimate another team from Serie A. It is not like they played against a team from the Serie B or worse than that when it happens that the far superior favorite underestimates how hard it can be to beat those teams. Take Bayern as an example when they played against a 3. Bundesliga team and lost, but nobody would ever say that was on purpose. If that were true, the coach would get sacked immediately.
Shocking to see Napoli losing 4 nil to Frosinone and not been able to maintain consistent performance in the Seria A matches. Could it be that all these unplanned negative results happens because Luciano Spalleti steps down from managing the club? Though he resign and I'm confident Napoli will bounce back to winning matches but it will take lengthy period because we can never be too sure of these matches. Napoli headcoach,Walter Mazzarri have learnt his lesson and he will not give room for any poor performance from his team, he's aiming for the best spot on the table.
I doubt that a coach has ever made such a difference when he stepped down and then a team like Napoli would lose games against an inferior team in such a shocking way. Of course coaches have some influences on the game due to their decisions, but not solely due to their presence. I think what's important to note here is that Mazzari decided against letting the best players begin the game. That was the mistake that cost them the next round in Coppa Italia.