Well, to argue from the other side of the view, that piece was written from an 80s mindset, a mindset where it was believed that with enough arms almost every national interest could be wrestled through on the international stage. That simply doesn't work anymore.
Obama isn't changing the role of the US in the world; the world has moved on on its own and changed the US' role, and clinging to old ideas and wasting money on them isn't helping anybody.
rumborak