There is a fairly rigorous process within the department. These things don't happen overnight, and typically the requirements that are prepared by the military go through a fairly rigorous challenge function—or should—by their colleagues and by the civilian side.
Certainly when I was there, my effort was always to make sure that at the end of the day anything we put out could pass what we called the “Globe and Mail test”: does this make sense; can the minister be embarrassed; can we be criticized for excluding competition? I guess the perfect case is the fixed-wing—