Who is Fred Joseph from The Predators' Ball and what is their importance?

Joseph is a Drexel Burnham employee who becomes the chief ally of Milken. He becomes the public face of Milken who preferred to stay out of the limelight. Joseph came to Drexel from E.F. Hutton and Shearson. He grew up in Boston's Roxbury neighborhood and graduated from Harvard in 1968 then went to work for Hutton where he was hired by John Shad who later became the head of the SEC. When his mentor Shad lost a power struggle, Joseph departed from Hutton and went to Shearson. As the Chief Executive Officer of Shearson he was instrumental in negotiating the merger with Hayden Stone. When he wanted to go back to trading, he went to Drexel Burnham.