You cannot prevent a major catastrophe, but you can build an organization that is battle-ready, where people trust one another. In military training, the first rule is to instill soldiers with trust in their officers - because without trust, they won't fight.
The most important decisions in organizations are people decisions, and yet only the military, and only recently, has begun to ask, "If we assign this general to lead this base, what do we expect him to accomplish?"
We have tried to substitute mass for purpose. We have tried to regain military potency of defense by making it gigantic, unwieldy, complex. It never works.