As a developer, I am in my third year as a solution PM. Thank you for organizing the parts that I did not know and were ambiguous. It felt like I was listening to an introduction to PM. I think it would be good if you could create another PM in-depth course. For example, it would be good if you could create a lecture centered on contents such as "How to defend when a customer keeps asking for requirements", "How to resolve conflicts with team members".