Atrica named Scott Messenger as its new vice president of Marketing, replacing Nan Chen, who has left the company to pursue other opportunities. Prior to Atrica, Messenger was Director of Product Marketing and Product Line Management for Cisco System's Optical Business Unit. Prior to Cisco, he led product management at Cerent (which was acquired by Cisco for $6.9 Billion), where he was responsible for product management for the flagship Cerent 454. http://www.atrica.com