It should be like that in a team, but there are some players who do make a big contribution and their contribution cannot be replaced, such as Kane in Bayern's front line now, even though there are reserve players to replace him, when Kane is absent, the team will experience a little difficulty and that also applies to almost all teams where there will definitely be mainstay players in a team.
This will be a problem when Kane is injured because it can affect the condition of the team during the match and every team should have reserve players who have almost the same ability to cover the injury of the main striker. Even reserve strikers are also very much needed because the coach can rotate when needed so that the core players do not experience defeat with a tight match schedule. The competition for the title is indeed quite competitive, especially in terms of competition in the Champions League and maybe Bayern Munich needs to work harder this season.