Prior to beginning his tenure as Director of MEF, Gregg served as Director of the Community Relations Council (CRC) for the Jewish Federation of Greater Pittsburgh. In 2014, Gregg was named one of the 10 most inspiring global Jewish leaders by the Jewish Telegraphic Agency. He was responsible for the public affairs strategy, policy making, intergroup relations programming and Israel advocacy initiatives for the Federation.

Under Gregg’s leadership, the CRC was the recipient of the 2013 Jewish Council for Public Affairs Program Excellence Award for innovative programming with Pittsburgh’s African American community. Gregg was also an adjunct lecturer of scenario planning at the University of Pittsburgh’s Katz Graduate School of Business.