Management issues, Transition from individual contributor to manager

The decision-making aspect of this area (transition from individual contributor to manager) is very interesting. It seems as though the individual contributor has to be a very high performer to know the level of work that other people should be contributing/performing. He/she probably sees it as a problem area that needs fixing and sees that a certain type of manager is needed. He/she probably wants to come up with ways (or maybe already thought of ways) to get people to achieve the level of performance needed. Also, when I read this post, I thought of an attitude this individual contributor may have. What leads a person to decide that others cannot perform their job as well? 

My post on this topic in February 2023:
https://fahmeenaodetta.blogspot.com/2023/02/independent-contributor.html

The post I read, my comment to that post, and an update to my LinkedIn research profile shown below.

 (Link to LinkedIn post: https://www.linkedin.com/feed/update/urn:li:activity:7096264070479151104/)

 

(My comment to the LinkedIn post)