Warehouse managers may supervise a section of the warehouse or an entire facility. Supervision of all aspects of the operation is necessary; from marketing to the warehouse floor. Interacting with frontline employees requires a combination of managing processes and people in the most effective ways to retain the best employees and formulate the most-efficient and effective processes. Following is a list of some core competencies required of warehouse managers: a. Decision making and delegating b. Planning and innovation c. Mentoring and coaching d. None of the options e. All of the options