Departures Longtime CEO leaves SIGMA Kenneth Doyle has stepped down as EVP of the $4M-revenue Society of Independent Gasoline Marketers of America after leading the Reston, Va.-based group since 1981. In a statement, SIGMA said Doyle plans to pursue other opportunities, including developing his family business, Doyle Association Consultants, initially founded 10 years ago by his wife, Laura. SIGMA's board of directors has formed a transition committee to search for Doyle's replacement. Arrivals AOA promotes Hymes to top spot The $24M-revenue American Optometric Association has promoted Jon Hymes to executive director, effective July 29. In addition, former COO Renee Brauns… Read More