With the much heralded change in government following the 2002 General Elections, there was little surprise within the civil service and international community when the Ambassador was called upon by the third distinct regime of his career to take on even greater responsibility within the civil service. In January 2003 he was appointed as Permanent Secretary in the Ministry of Provincial Administration and Internal Security whereat he initiated the Anti-Terrorism Police Unit. This appointment however appeared to have been a purely temporary measure as it was promptly followed by his elevation one month later to the position of the Head of the Public Service, Permanent Secretary to the Presidency and Secretary to the Cabinet.
Under his stewardship since February 2003, the Public Service and the Government as a whole has experienced significant reform and re-energization playing a central role in the increase of national growth rates from 1.9% to 7.1% in the space of 5 years between 2003 and 2007. In the course of this process of national transformation, the Ambassador also oversaw the overhaul of performance monitoring and operational structures within the public service that saw Kenya awarded the 2007 United Nations Public Service Award in respect of “Improving transparency, accountability, and responsiveness in the Public Service through making public administration results oriented and efficient through a performance contracts system.”