At the ADM level, the three-star generals and admirals and the ADMs in the department put forward challenges for problems they need solved. It is either a study to help inform a next step in something, or it is a challenge to help procurement. We are doing these with very specific end goals, and it just depends on the nature of the challenge. ADM Pat Finn, in materiel, would use a challenge to help him procure so he can buy and try something. It allows us to test a product or several products and decide which one we're going to procure. Instead of saying we need a specific boot, we see which boot works.
Some of them, which are being run by the chief of military personnel, through the S and T program, are to help inform how we recruit, how we retain and how we improve living conditions for members of the armed forces. Every challenge has an end goal; it just depends on the nature of the challenge.