As I've posted before, I still think OODA is perhaps most applicable in the realm it was first designed for: one on one air-to-air combat. As soon as you start adding people in, and bringing in new factors, it can easily degenerate into a series of poor decisions based on inadequate information and time pressure.

That said, I think the concept can be expanded to areas other than air-to-air combat, but the framework needs to change. OODA in the wrong hands can (and I'm sure has) lead to badly-informed decisions made solely on the pretext of being "fast" and thus "first." To tie back to the original thread, technology can make this worse by creating an illusion of complete information and complete communications.