"As the weeks unfolded, a core group of more than 100 CIA officers—all highly experienced leaders from throughout the Agency known for their independence, skill, initiative, and bravery—worked with some 300 US Special Forces personnel and partnered with local tribal and military forces. Team members took risks and worked with key groups in the area, displaying unparalleled bravery in accomplishing the mission.
All-source intelligence enhanced the operations. The networks of sources that the CIA had developed in Afghanistan over the previous two decades provided critical information on the enemy’s capabilities, plans, intentions, and motivations. The overall success of military operations in those first few months is well-documented. Aided by superior firepower and backed every step of the way by a dedicated team of intelligence professionals, the United States and allied forces made significant strides in those early months. CIA teams with officers representing all Agency directorates supported officers in the field."
https://www.cia.gov/about-cia/cia-museum/experience-the-collection/text-version/stories/on-the-front-lines-cia-in-afghanistan.html