Drawing from disparate sources — from the Pentagon to corporate America — Mr. Brennan’s plan would partly abandon the agency’s current structure that keeps spies and analysts separate as they target specific regions or countries. Instead, C.I.A. officers will be assigned to 10 new mission centers focused on terrorism, weapons proliferation, the Middle East and other areas with responsibility for espionage operations, intelligence analysis and covert actions.
During a briefing with reporters on Wednesday, Mr. Brennan gave few specifics about how a new structure would make the C.I.A. better at spying in an era of continued terrorism, cyberspying and tumult across the Middle East. But he said the current structure of having undercover spies and analysts cloistered separately — with little interaction and answering to different bosses — was anachronistic given the myriad global issues the agency faces.
“I’ve never seen a time when we have been confronted with such an array of very challenging, complex and serious threats to our national security, and issues that we have to grapple with,” he said.
One model for the new divisions is the agency’s Counterterrorism Center, an amalgam of undercover spies and analysts charged with hunting, and often killing, militant suspects across the globe. Once a small, occasionally neglected office in the C.I.A., the Counterterrorism Center has grown into a behemoth with thousands of officers since the Sept. 11 attacks as the C.I.A. has taken charge of a number of secret wars overseas.
But Mr. Brennan also cited another model for his new plan: the American military. He said that the Defense Department’s structure of having a single military commander in charge of all operations in a particular region — the way a four-star commander runs United States Central Command — was an efficient structure that led to better accountability.
Mark M. Lowenthal, a former senior C.I.A. analyst, said that the reorganization “is not going to go down smoothly” at the agency, especially among clandestine spies who have long been able to withhold information from analysts, such as the identity of their foreign agents. “The clandestine service is very, very guarded about giving too much information about sources to the analysts,” he said.
