[Rick]

1 drive team where roles are defined and not changed usually yields a better performing drive team and robot.

Rotating drive team members includes more students and can be more fun but yield a less successful performing robot.

Each style has its own pros and cons.

121 has a primary and secondary team. Secondary is ready to go if someone on primary becomes ill or has to leave. You never know if the food at the restaurant the entire drive team is at will give them food poisoning. We learned that one the hard way...