As far as I understand it, most anarchists are opposed to unjust / unjustified / unnecessary hierarchies. There’s many advantages to having managers, team leaders, captains, etc. because it can be helpful to have someone coordinated actions between a larger group.

What anarchists would seek to avoid would be structures where power starts to consolidate around people beyond what’s needed. It’s good to have a leader for quick decisions in the heat of battle, or other emergency, but that person doesn’t need to decide everything outside of battle, because there’s time to have a more democratic or consensual decision making process. They also don’t need to be given more money, or not be accountable and replaceable by their squad.