https://www.forbes.com/sites/forbescoachescouncil/2018/07/12/the-five-levels-of-leadership-and-where-you-stand/
Zaheen Nanji
flipped into Leadership
https://www.forbes.com/sites/forbescoachescouncil/2018/07/12/the-five-levels-of-leadership-and-where-you-stand/