Watch the YouTube video, Simon Sinek MOTIVATION - How to be a Leader and discuss how his comments play a role in successful leadership.

Watch the YouTube video, "Simon Sinek MOTIVATION - How to be a Leader" and discuss how his comments play a role in successful leadership.  I am not looking for a summary of the video; rather an in-depth discussion of leadership and how the video content is related/relevant to leadership theories. Discuss specific leadership theories that may be relevant and applicable. This will take some thought and processing. 

 Multiple sources are required in addition to the video. 

1000 words