Things that don't bother me as your manager
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The funny thing about Servant Leadership[0] is that it demands a leader see themselves as an equal with those whom they lead. Thus requiring acknowledgement that the title a person has does not establish their value, no matter what an org chart proclaims.
I don't care how good of a manager I have, they're not going to hear if I'm looking to work elsewhere until I hand in my notice. Telling them provides me no value, and since I work in the US could lead to immediate termination regardless of my plans.