Blue21,with respect, I submit that you don't know what the *** * you are talking about.
"who can,do.
who canīt,teach.
who canīt teach,manage."
I spent 25 years working traffic to learn how to become a good teacher of ATC. I worked in busy facilities. I took my lumps. Then, I had to learn how to impart the knowledge I'd gleaned to eager - and not so eager - young minds.
The little ditty above does disservice to some really outstanding instructors and - yes - managers, who have used their experience to help make ours a better profession.
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VISIT LUCKY VECTOR ATC PUB