After serving as Chief of Station in Budapest, Hungary from 1998-2000, Slick returned to Langley to lead the CIA's Balkan Operations. He then became an Executive Assistant to Deputy Director of Central IntelligenceJohn McLaughlin. In 2004, he moved to the National Security Council as Director for Intelligence Programs. In 2005, Slick was appointed Special Assistant to the President and NSC Senior Director for Intelligence Programs and Reform. In this latter position, he was an advisor on intelligence matters to the President and the assistants to the President for national security affairs, homeland security, and counterterrorism. At the NSC, Slick chaired the Policy Coordination Committee on Intelligence Programs, leading administrative and interagency reviews of ongoing and proposed covert action programs and sensitive intelligence collection activities. Slick was part of a team led by NSC Counsel John Bellinger and Senior Director for Intelligence Programs David Shedd that supported the development of an administration response to recommendations for government reform put forward by the 9/11 Commission. The team also lobbied for what would ultimately be enacted as the Intelligence Reform and Terrorism Prevention Act of 2004. Slick led an NSC staff review of recommendations by the Silberman-Robb Commission regarding intelligence failures in connection with pre-war assessments of Iraq's weapons of mass destruction. During his White House assignment, Slick advocated for strong central leadership of the Intelligence Community while preserving the CIA's traditional roles in human intelligence, coordinating intelligence activities overseas, and conducting covert action directed by the President and supervised by the NSC. During President Bush's second term, Slick supported calls by Director of National IntelligenceMike McConnell and the President's Intelligence Advisory Board to revise Executive Order 12333. The Order, originally issued by President Ronald Reagan in 1981, served as the “charter” for U.S. intelligence. Many of its terms became obsolete on passage of the IRTPA. Slick led the year-long process of interagency coordination of a revised Executive Order 12333, which President Bush signed in July 2008. After assisting with the transition of intelligence activities to the Obama administration, Slick returned to the CIA in early 2009. He was given a four-year assignment as Chief of Station and the Director of National Intelligence's Representative in a Middle Eastern capital. He retired from federal service in 2014. In January 2015, Slick was named the first Director of the Intelligence Studies Project, sponsored jointly by the Robert S. Strauss Center for International Security and Law and the Clements Center for National Security at the University of Texas at Austin. He was appointed as a Clinical Professor at the University's Lyndon B. Johnson School of Public Affairs at the same time. Slick is Fellow to the Bobby R. Inman Chair in Intelligence Studies.