Getting A-head: With Herbert

Herbert Head is probably one of the least developed characters in the novel. We are introduced to him in the second chapter, but Quentin's mind repeatedly wanders to memories of Mr. Head. At first, he is portrayed as a decent guy; we are told that he offers a job to Jason in his bank and gives Caddy a car. Then, Herbert and Quentin argue at Caddy's wedding. Finally, Quentin reveals to us that Herbert cheated at Harvard on both exams and cards. What is your view of Herbert? What do you think his role was in Quentin's suicide? Are Quentin's descriptions of him biased fabrications or genuine truths?