[Coin3]

Darth Drew, it appears that the only legal way to introduce a new ball to the field is to take the ball that is on the pedestal(once it's lit up) and toss it onto the field from the side of the alliance station.

Since you can't pass between human players from the alliance station to the human player area, there is no way for somebody in the human player area to introduce any new balls. They can only catch and pass balls that are passed to them by a robot on the field.