The board promoted him to the role of a regional sales executive.

executive 来自动词 execute（执行），加上后缀 -ive 构成名词，指"执行者、管理者"。在商业环境中，executive 通常指"高管、主管"，负责决策和执行公司战略。regional sales executive 指负责某个区域销售业务的管理人员。