The CIA official who led the hunt for Osama Bin Laden is being removed from his post , it has been revealed . The head of the agency 's Counter­terrorism Center , who also directed drone campaigns which killed thousands , has been in the position for nine years and is described as a 'true hero ' . His move is part of a major restructuring under CIA director John Brennan , and ends a tenure which has seen the center become a paramilitary unit , The Washington Post reported . The official , who has not been fully named by the paper as he is still undercover , is a convert to Islam and is believed to be in his 50s . The CIA official who led the hunt for Osama Bin Laden is being removed from his post as part of director John Brennan 's ( pictured ) restructuring . The agency veteran has been described as a true hero . Known by his agency identity Roger , he presided over a campaign of espionage and armed drone strikes that have killed both terrorists and civilians . Many of Al Qaeda 's most influential leaders have been slain under his leadership , but the main threat has since shifted to ISIS . In a Post profile written in 2012 , he was described as chain-smoker and 'not at all a team player ' by colleagues . He was also the basis for the character 'The Wolf ' in the film Zero Dark Thirty and is said to have spent hours on the treadmill reading terrorism reports . But agency spokesman Dean Boyd paid tribute to the senior official as news of his departure surfaced . He said : 'After nearly a decade of outstanding work in this post , including the takedown of countless terrorists and many other successes in protecting the country , he will be moving on in connection with the CIA modernization plan announced last month . ' Roger is believed to be staying on at the CIA and will be reassigned . His successor is known as Chris and is said to be an agency veteran who has already been in a number of high profile positions . Earlier this month Brennan ordered a sweeping overhaul of the spy agency , aimed in part at sharpening its focus on cyber operations and incorporating digital innovations into traditional intelligence gathering . Known by his agency identity Roger , he was the basis for the character 'The Wolf ' in Zero Dark Thirty ( not pictured ) . Kyle Chandler ( left ) and Jessica Chastain ( right ) during one of the scenes . The move was prompted after nine outside experts spent three months analyzing the agency 's management structure . These included what deputy CIA director David Cohen called 'pain points ' - or organizational areas where the CIA 's bureaucracy does not work efficiently . US officials said that Brennan decided the agency had to increase the resources and emphasis it devoted to cyberspace because advanced communications technology is rapidly becoming pervasive . Historically , electronic eavesdroppers at the National Security Agency have been at the cutting edge of digital innovation within the US government . But the CIA felt that it too had to reorganize to keep up with the technological 'pace of change , ' as one official put it .
Official known only by his agency identity , 'Roger ' , is stepping down the as Counter­terrorism Center 's head . He was appointed to that position in January of last year and has been with the FBI since its inception in 1979.