What should a manager goal be?

Become redundant.

What should a manager do all day?

Jack Shit

What is a great way to test the quality of a manager? Send them on a multi-week vacation and see what happens.

Does everything keep running, or does things grind to a halt? Does the team still deliver, or things are completely blocked? Is there any visibility during this time of what this team is doing, or does it seem the team fell off the face of the earth? For extra browny points, does the team keep self-improving during this time, or does progress stall?

Ultimately it’s not our job to be busy, but to work the system™️ and get results.