On the first point.
We are not the only team in the world that needs to rest players in october, we are just one of the few that can afford to do it. Napoli goes hard with 12 players for 3 months and then gets burnt out, then snaps back into form, and then the same thing happens a few month later. Then we beat them to the scudetto.
We don't need to peak in october.
Montella tries to keep players fresh at Milan but their horrible depth costs them. Spalletti rotates his midfield every game. Sarri since he has proper depth now rotates Zielinski, Diawara, Milik, Maksimovic, Chiriches and Rog in the mix. See their CL games. Or Inzaghi at Lazio putting out poverty lineups in EL to rest his players for Serie A.