The first and most basic frustration folks have with the management is the easiest to explain. You are frustrated because you’re busting your ass, but each time you walk by your boss’s office he’s got his feet kicked up on the table, coffee in one hand, the other hand jumping hither ‘n’ fro, and he’s talking to some guy you don’t know. How in the world could this be work?

Here’s the deal: your manager’s job is not your job.

from Managing Humans

A simple lesson I wish I had learned a long time ago.