[EricH]

It depends on the robot, and on the team. However, 90% of the time, you will want two. One would control the drivetrain and anything critical to the drivetrain (or that makes sense to have with the drivetrain). The other controls everything else.

That being said, it is entirely possible to run one driver and have the other being either a spotter or assisting the HP. We did that last year, with the help of a lot of automation on the robot.