NEW YORK (AdAge.com) -- How is Eddie Murphy playing a role in a new push to diversify ad agencies? Former agency account exec Lincoln Stephens is both an example and an evangelist of the "Boomerang" effect. A year ago Stephens abruptly quit his Chicago agency job, moved back to his hometown of Dallas and, on a shoestring budget, launched a program to recruit, train and motivate talented young African Americans for advertising agency jobs. Execs at The Richards Group
, Imaginuity, Tracy Locke and other Dallas organizations volunteered to mentor participants in his first boot camp sessions.