I got really curious as to Riley's exit interview and I was able to read the document Catherine was reading. Here's what it said:
Riley Adams stated that she was resigning so that she could accept a law enforcement position in the Midwest that offers more opportunities for advancement.
Adams stated that she found it frustrating to be a member of the grave shift because "the team suffers from a lack of cohesion. There is no team unity, no leadership, and poor communication. There are many talented individuals but they are too often more concerned with persuing their separate investigative agendas than with integrating themselves into a tightly coordinated unit. Another factor that cannot be ignored is the ineffective leadership of the supervisor, Catherine Willows. Willows is brilliant, determined, experienced and passionate about her work, but has a problem delegating clear lines of responsibility among team members which leads to a duplication of work, wasted time and interpersonal conflict."