This is an excellent series on Dewey & LeBouef’s Former Leaders by Steven J. Harper, Esq of the Blog:
As you have time its worth the read and reflection.
I’ll add the the link for Landgraf once Steve posts it.
Morton Pierce Former firm Chairman
Gang of Four Members
Jeffrey Kessler  Chairman of Global Litigation and co-char of Sports Litigation
Martin Bienenstock  Bankruptcy & Restructuring Lawyer
Richard Shutran Co-chair of Corporate & Chair of Global Finance
L. Charles Landgraf