Founder and CEO Willard Ahdritz announced the change in a memo to the company’s employees. He also announced some other senior management promotions. Sas Metcalfe, a 16-year veteran of the business, is now chief creative officer. Lonny Olinick has moved from head of strategy to chief strategy officer. Marissa Mencher, formerly a human resources executive, is now chief people officer. Finally, Jeannette Perez has become Kobalt’s president of global synch and brand partnerships.