Nagelsmann's side has begun his second season at the helm in stunning fashion, beating RB Leipzig 5-3 in a thrilling DFL-Supercup before racing to a 6-1 win at Eintracht Frankfurt in their Bundesliga opener last week.
Bayern was 5-0 up before half-time as it tore the UEFA Europa League winner apart last Saturday (AEST), the biggest half-time lead a team has ever had in its opening Bundesliga game, while only one side has ever netted more than its six goals on matchday one – also Bayern in an 8-0 thrashing of Schalke in 2020.
The Bundesliga champion's terrific start was made all the more impressive by the strength of its bench, with Sane and Matthijs de Ligt restricted to roles as second-half substitutes.
Sane, who went on to assist Bayern's sixth goal, has been linked with a move to Manchester United as Serge Gnabry and Sadio Mane start in Nagelsmann's attack, yet the coach is not concerned.
"I don't see any reason to change anything. We're still in the kind phase of the season, so you don't have to make big changes," he said ahead of Monday's (AEST) clash with Wolfsburg.
On Sane, he added: "He is not satisfied that he does not start. Others are doing better, like Jamal Musiala recently.
"He needs to impose himself in training. He handles it well."
Mane has quickly made his mark, scoring 29 minutes into his Bundesliga debut and finishing the first weekend with the joint-most sprints (39) across the division, showing his seamless adaptation to Bayern's high-energy approach.
"He's very humble, an extreme team player who lets others shine," Nagelsmann said of the former Liverpool forward. "When dealing with him, you don't realise that he's a superstar. That makes it comfortable with him."
Meanwhile, Leon Goretzka has missed out entirely for Bayern so far this season, having undergone knee surgery ahead of a pre-season tour of the United States in July.
The Germany midfielder only made 19 Bundesliga appearances during a troubled 2021-2022 campaign, but Nagelsmann revealed his recovery is progressing nicely.
"He's done some running but will need a bit longer before he can join team training," Nagelsmann said.
"I will give him all the time he needs. The knee hasn't reacted badly at all, and the healing process is going better than we'd expected."