Michael Conway, who was named to Starbucks’ newly created role of CEO, North America, in March, has announced his retirement. Conway was promoted to the position after serving as group president of international and channel development. In that role, he was responsible for leading Starbucks’ retail growth and operations in 80 markets. Sara Trilling, president of Starbucks North America, will now lead retail operations across the region. She has been with the company for 22 years, previously serving as senior vice president of its north division.