Mazzarri is looking for a step up in quality.
"At a general level these past three years, Napoli have always been competitive. You have to understand the intention," said Mazzarri.
"I believe that when a team is appreciated by its public, plays a nice style and manages to win points, I think that this is already a success.
"Then, you can always do more, especially if you take numerical calculations and the classification into account, you can always improve.
"We must make targeted purchases in the market, few, but of quality, if you are talking about reinforcements. The directors already have my ideas.
"All this is then conjugated to other situations. We want clarity in respect of our fans, it is necessary that things are communicated clearly. I think that any idea the club has must be respected."