Answer:
Derek would be best described as a tactical leader/manager.
Explanation:
A tactical manager makes certain choices and decisions to get the job done as efficiently as possible. Such managers and leaders tend to inspire the employees to encourage them to complete the task. Influencing, negotiating, and motivating employees to succeed are the major characteristics of tactical managers. For e.g. Derek motivates and encourages his subordinates by providing them coaching and making sure that the job is being done properly.