I've never been involved in an aircraft emergency and I hope that I never am, but........
All the training in the world is useless if the trained personnel just "go to pieces" in the event of being caught up in a real emergency. How can you assess CC etc to determine if they will keep their heads in an emergency and not only follow the training and procedural matters to the book, but also be able to assess what is going on and adjust what is done to suit the specific conditions of a real-life emergency?