Napoli coach Rafa Benitez insists his squad only needs tweaking to match Juventus next season.
Benitez does expect to be active in the summer market.
He said: "We want to build a strong squad and an infrastructure that will allow us to win. The Scudetto? Promising it is impossible," warned Benitez. "You can win with a club that has a lower revenue, but need a lot of hard work to achieve that result.
"In any case, I don't think there is such a big difference between Napoli, Roma and Juve. We are closer to them than the points would suggest."