Lot of confusion about who does what in the CIA. Operations Officers are the bread and butter of the CIA world as far as this conversation is concerned. They, however, are not typically the guys who are going undercover to spy. They may be assigned to an embassy or to a foreign office of some major US company, and work "undercover" in that capacity. It is the locals of a given location that actually DO the spying. Ops officers recruit them and manage them.
"People sleep peacefully because rough men stand ready in the night to visit violence on those who would do us harm." -- George Orwell