Many MBA students choose to focus on a sharply defined niche within the study of business administration, and MBA majoring in Human Resources is increasingly becoming one of the more sought-after offshoots. The relationship between employees, employers, managers and the workspace is at the core of the study of human resources. Students take courses like organizational behavior and strategic management and are trained to serve as advocates for employees as well as to participate in the recruiting and interviewing process of new hires.