It also might make sense that the NSA is a corrupt juggernaut and expecting them to do your heavy lifting isn't appropriate, especially when its clear that Clapper runs a security theater-like organization.

The CIA and other agencies having its own smaller team probably means better outcomes. This kind of thing probably works best with smaller and more nimble teams than big data gathering focused organizations like the NSA.

From a budget perspective, this is good cause to cut from the NSA and give to the CIA.