[Christopher149]

Reading the glossary at the end might help you the most.

Edit:

DRIVE TEAM – one (1) COACH, two (2) DRIVERS, and one (1) HUMAN PLAYER from the same FRC Team who are responsible for ROBOT operation during a particular MATCH.

COACH – a student or adult Mentor identified as the person wearing the designated “COACH” pin or button during a MATCH.

DRIVER – a pre-college student DRIVE TEAM member responsible for operating and controlling the ROBOT during a MATCH.

HUMAN PLAYER - a pre-college student DRIVE TEAM member primarily responsible for managing and introducing game pieces onto the FIELD throughout the MATCH.

Edit2 (emphasis mine):

T1 Safety is paramount at all times during the Tournament. Event staff have the final decision authority for all safety-related issues within the venue. All event attendees must wear safety glasses and closed-toed shoes while in the ARENA.