E-M-P . . .
However, in all seriousness I agree that it would serve wise to have a very strong defense in the far zone. A highly maneuverable robot would possess the qualities necessary to deny the opposing alliance any soccer balls to score.
In BAE 1073 and their alliance reigned victorious over 78 and their alliance members through the aid of this tactic. 78 was in their own near zone and attempting to score. However, whenever their vacuum would gain possession of a soccer ball, the defending robot would tap/ram (perspective) them so they lost hold of the game piece. Hence, denying them from successfully scoring much needed points.