Operations

Crew Resource Management — the effective use of all available resources, including people, equipment, and information.

To use all available resources — human, hardware, and information — to safely conduct the flight.

The remote pilot in command (remote PIC).

To help the remote PIC and person manipulating the controls keep the aircraft within visual line of sight and scan for hazards and other aircraft.

No — a VO is optional, but if used, the remote PIC and VO must coordinate effectively.

They must be able to communicate effectively, by an effective means such that they can pass information about the flight at all times.