Research a scholarly paper or professional video on “Project Management” and ref

Research a scholarly paper or professional video on “Project Management” and reflect on only one (1) of the following:
“PMI”: PMI identifies a number of Process Groups, Knowledge Areas and individual Processes. Which ones seem the most critical or the most demanding or the most complex.
“3-legged stool”: Name and describe how each leg of the 3-legged stool of project management affects the other legs.
NOTE:
You must copy and paste the topic you chose (either “PMI” or “3-legged stool”) at the start of your initial post to provide a context for your answer.
Your initial post must be between 200 words on what caught your eye and reflect on what you read.
Your initial post must provide one APA reference with in-text citation. Do not use the textbook as a resource.
The reference must include the URL/DOI of your resource so that other students can view the content themselves.
NOTE: i need minimum of 200 words for the above discussion, in text citations, in APA format & references are important too.