Pesin Eder is Cohn & Wolfe President, North America

August brings on Andrew Jarrell as a managing director in its New York office. Jarrell comes to the agency from Group Gordon, where he most recently served as chief strategy officer... PSD, which produces activewear and underwear worn by and made for professional athletes, hires Dan Harbison as SVP of marketing and Monica Lin as VP of brand marketing... UKG, an AI platform that combines HR, pay and workforce management, names Vitor De Souza chief communications officer. 

Dezenhall Resources brings on Jessica DeLoach as VP. DeLoach was previously deputy director of public and media relations at the Southern Poverty Law Center... Crowe Media hires Alissa Kasawdish as senior integrated PR manager. Kasawdish was previously an account supervisor at J/PR... Benefitbay, a SaaS platform that lets users make their own benefit decisions, names Lindsey Unterberger as VP of marketing.

Catherine Sullivan, global chief communications officer at Burson, has exited the WPP unit after a 12-year run.

Six Flags Entertainment Corporation hires Amy Martin Ziegenfuss as CMO, effective June 3.  Ziegenfuss was most recently CMO at Carnival Cruise Line... Narrative Strategies brings on Hanna Beckman and Rich Casale as senior directors... Grayling has appointed Maury Postal as EVP, creative strategy and innovation services... HMH (Houghton Mifflin Harcourt), an educational publisher and technology company focused on K–12 education, assessments and professional learning, names Jessica Naeve CMO.

Brunswick Group has announced that Teneo's Christian Buss and Netflix's Paul Shaw have joined the firm as partners in San Francisco.