Mellissa is the CEO of a small marking hiring firm in the southern region of the United States. She currently has $5$ employees and just recently hired two new team members. Her current workforce includes individuals who have recently graduated from their undergraduate programs. She recruited her new hires from a University job fair. All of her employees graduated from different departments and programs. Mellissa is proud of the type of diversity that she has. As a consultant, what type of diversity is she doing well, and what type does she need to improve?