Two thoughts on this:

1. The U.S. does not currently possess a "Grand Strategy," and that is an incredible obstacle to virtually everything we do as a nation. As many have said:"If you don't know where you're going, any road will take you there."

2. This product by Warden, while interesting, shows the Cold War roots that most of us were grown from. It is far to "Threat-Centric." While there will always be threats, as Warden lays out, they are difficult to predict. Far better to base a Grand Strategy on understanding and shaping the environment to be favorable to ones own national interests, but doing so in a manner so as to not unneccessarily generate future threats as second and third order effects.