Conte is Napoli's new coach for next season, at this time he only needs to see and study the character of all the players at Napoli before giving any instructions to the Napoli players. Because next season hasn't started yet and Conte himself still has time to adapt to the Napoli players and also get an easier adaptation with the Napoli team before next season starts. And currently Napoli also have to focus on various things, including recruiting new players in order to get better performance next season.
I am sure Conte will be able to give his best and make Napoli a champion contender again. Conte is one of the best Italian coaches I know and he really understands the character of football in Italy. I agree with what you say that Conte must adapt to the character of each Napoli player and the club management must also give Conte a sufficient budget to spend on players who suit the tactics he will use next season.