Spalletti certainly must be able to maintain the stability of the game from his team, if this is successful then the Scudetto will be in his hands. Napoli's opportunity this season is very open, considering that tough competitors such as Inter and Juventus are still inconsistent, except for AC Milan, who has little fighting power in the title race.
AC Milan has also not been completely consistent this season and even AC Milan's achievements themselves are still slightly inferior to Atalanta when compared to this season after ten games. Atalanta still haven't lost this season, neither have Napoli and I think these three teams will make the Scudetto trophy even hotter. Especially considering that the three points are not that far away and if Napoli or Atalanta get a draw in the next match, then the position will change if AC Milan is able to win again in the next match.