Porter Novelli announced that Darlàn Monterisi has been named managing director of Porter Novelli New York, succeeding Karen van Bergen who was recently named CEO of the company. Monterisi joined the agency in 2011 as an executive vice president to lead the HP business. Prior to joining Porter Novelli, she was the global PR director for Rockstar Games, where she conceived, developed and executed integrated communications programs for such brands as “Grand Theft Auto IV” and “Midnight Club: Los Angeles.” (Release)

MercuryCSC president Jeff Welch announced that Mike Geraci has been hired as VP of converged media, a new position for the agency. In addition, Stacie Wunsch has been promoted to VP of Client Services and Maclaren Latta to VP of consumer insights. Geraci will oversee the agency’s creative department and implement integrated brand marketing that combines creative strategy with social media, content development, traditional PR, and other innovative channels. (Release)

Hager Sharp announced the hiring of nationally-recognized social media professional Mike Schaffer as director of digital strategy. He will work across all the firm’s account teams to provide expertise in digital strategy, social media and online programs. Hager Sharp specializes in “communications that make a difference” in health, safety and education — where fully integrated social marketing and public awareness campaigns are critical. (Release)