Formula SAE runs into a lot of the same issues. It is my teams mentality that only involved members are going to be driving the car at competition. This is because they know the systems well, and they put in the bulk of the work (plus they will not abuse the car in our endurance event

).
It is a competition between involved members, but I can't see FIRST getting the desired effect out of a dedicated robot driver who doesn't do anything else on the robot. It could happen, just don't think its likely.