As far as staged, I saw Obama appear at other departmental headquarters and NONE of his appearances were greeted with such sustained and loud cheering, screaming and clapping in utter joy as at Langley.
Many articles and books were written calling the CIA a fifth column. I love your term "very low level" people. Others call them analysts. I, for one, don't believe the frenzied mass at that gathering is unrepresentative of the CIA. It needs to be cleaned up. Bush halfheartedly tried but failed.
I will never forget how a few at Langley undermined President Bush, but if you think the CIA is mostly in favor of Obama’s policies then you are quite mistaken.