Consulting producers are former executive or possibly co-executive producers, or in rare cases directors, who no longer work on the show with great regularity. They are called upon to assist the writers, sometimes specializing in a particular subject. An example of a consulting producer would be Marti Noxon, who has worked in this capacity on shows such as Angel, Prison Break, Mad Men and Glee. Another would be Josh Berman, who worked as a consulting producer on the FOX Network television series Bones.