Early on, the teams were encouraged to build prototypes so that they could "bump them up against reality and discover for themselves the strengths and weaknesses of their particular approach."
기술개발후기에, 빌은 자기 역할을 이렇게 묘사했습니다, "토론을 유도해서 개발과정에 솔직함을 더하는 것." 초반에 기본 모델을 제작해서