It would appear that the defense strategy is to shift the focus from Boeing misleading (or colluding with... ?) the FAA to diverge from established safe design and certification requirements (a crime even if the accidents would not have happened) to discussing the degree to which these actions have contributed to the accidents, which indeed is debatable. Aviation safety rests on two pillars: an inherently safe design, and training to be able to cope with the rare unsafe occurrences. The trial is (or should be) about the first, and hopefully will not be hijacked to be about the second.