[Lil' Lavery]

Be able to think as you drive, and know what you're going to have to do next. Practice, practice, practice until everything about the actual controlling and driving of your robot is pure instinct. Then when you're on the field you can focus on the other five robots and game pieces. If you can make basic tactical reactions to events around you, it makes the coaches job at lot easier as (s)he can focus on the grand scheme of the match and the overall strategy.
Bottom line, practice until everything becomes instinct, then learn how to react to common field events (ie passing a robot, picking up a ball, where on the overpass is it easiest to hurdle, etc.).