Not every situation allows for separate entry and exit points (as seen in the first example); it is easy to see how having a single entry and exit point for the CCP could create a problem with casualty flow if casualties continue to arrive as others are being moved out to the evacuation point.

Nonmedical unit leadership are typically responsible for security, casualty flow and movement, and everything outside of the CPP.  Also, they are responsible for providing assistance to medics with augmentation, directing aid and litter teams, gathering and redistributing casualty equipment and sensitive items, providing accountability and reporting to higher authority, requesting evacuation and establishing CASEVAC or MEDEVAC link-up points, and managing KIA remains. 

Medical personnel are responsible for everything inside the CCP, including triage, casualty treatment and monitoring, packaging and staging casualties for evacuation, requesting assistance as needed from other unit assets, providing guidance and recommendations to leadership on casualty management and evacuation, medical equipment and supplies. 

In an ideal layout, there are separate entry and exit points (which are potential chokepoints) to control casualty flow through the CCP, similar to what is seen in this example.