David Goggins often shares his leadership struggles on podcasts and in his book. His leadership ability may seem counterintuitive due to the huge following and fanbase he has.  Whether you're in business, interested in learning more about leadership, or just wondering why David Goggins had challenges, Daniel Goleman's research might provide an answer.  And it also tackles the problem of "do high-performance people make the best leaders?"  https://www.cdfifund.gov/Documents/(51)%20Leadership%20that%20Gets%20Results.pdf