Who is Dr. Irene Kennedy from Transfer of Power and what is their importance?

Dr. Kennedy is Mitch Rapp's handler on the Orion Team. She is also the head of the CIA's Counterterrorism Center. Irene is described as shrewd, professionally astute, and completely loyal to Mitch. She is torn between letting him to take renegade action and remaining in the chain of command. Kennedy serves as the second-in-command to CIA director, Thomas Stansfield.