Final answer:
To learn about the employees in her unit, the new sergeant should prioritize building a positive and productive relationship with her staff.
Step-by-step explanation:
The most important way for a new sergeant to learn about the employees in her unit is to prioritize her relationship with her staff. Developing a positive and mutually productive relationship with her employees will allow her to better understand their skills, strengths, and weaknesses. By building trust and open communication, she can gain valuable insights into her employees' needs, motivations, and potential for growth.