Mazzarri's contract expires in June and he admitted earlier this season that he could opt to take a break from the game.
"The club want to renew our agreement, but I would prefer to calmly make a decision at the end of the season," he stated.
"If President Aurelio De Laurentiis can wait
"I have a splendid relationship with the club, but now is the time to think about our targets on the pitch. I'm giving my best."