"Companies count on managers to make smart team decisions and oversee group members in order to maintain deadlines and keep operations running smoothly. Be prepared to answer several situational questions that will evaluate your time management skills, problem solving abilities, and ease in leading a team. Employers will also expect you to be well-versed in products and operations, so make sure to brush up on the department's relevant work."
Tell me about a time when you had to fire an employee for poor performance. How would you handle an employee who was tasked with a critical project, and not making significant progress? Have you ever promoted an employee, only to find out they were not right for the new position? What did you do? How much time do you think you need to assess the department before recommending changes? What are your top three priorities coming into the department, and how long would you expect to take to meet them?
There were many questions along this same line, suggesting to me they had problem employees who were going to require immediate performance management actions.