Rosa Serrano, Director of Planning and Buying at Lopez Negrete Communications in Houston, has left the agency. Serrano will be replaced by Jim Irvine. Irvine's position at the Houston based Hispanic Advertising Agency was Senior Director of Media Strategies. Lopez Negrete's accounts include Gruma, Dr. Pepper and Sonic.
Before joining Lopez Negrete in March 2008, Serrano had been SVP Group Account Director at Initiative Media North America.
UPDATE, July 7: Rosa Serrano, former Director of Planning and Buying at Lopez Negrete Communications, is creating her own Advertising Agency in Houston. She will be leading ReSults Media and Marketing Partners, an entirely new agency that will provide a wide range of services. Read more here.