SEATTLE (AP) — Rossann Williams, Starbucks’ North America president who’s been a prominent figure in the company’s push against worker unionization, is leaving the company after 17 years. In a letter sent to Starbucks employees, whom the company calls “partners,” chief operating officer John Culver said the decision “was not taken lightly” and added that Williams was offered another job at the company, which she declined. Sara Trilling, meanwhile, was promoted to executive vice president and president of Starbucks North America. Trilling is a 20-year veteran of Starbucks and most recently served as senior vice president and president of Starbucks Asia Pacific in Hong Kong.