In regards to DoS, it's helpful to remember Kilcullen's comment on Charlie Rose - DoS is absolutely minute in comparison to DoD. This raises a difficult question about unity of command and purpose - so insisted upon by COIN theorists (actually all military theorists) from Galula on forward, when many of the resources needed are outside the domain of DoD. Using multinational organizations or NGOs for the "civilian" or political side of COIN is risky when these groups do not report to a single commander, whether that's POTUS or SecDef. But the capabilities are not inherent in DoD, nor do I think the Pentagon is going to invest in a lot of agricultural development experts anytime soon (side note: I'm taking a class on the economics of agricultural development; interesting stuff). That means for a unified, consistent effort, those assets will have to come from State, and if we don't have 'em, we need to find 'em.

Matt