This paper evaluates Tanzania Public Service Leadership Competency Framework [TPSLCF] so as to establish the extent to which it addresses the core knowledge needs of the government. Based on public administration viewpoint, semantic and linguistic analyses are used to compare the knowledge needs of the government as proposed by the President’s inaugural speech, the national research priorities and the TPSLCF. The findings indicate that to a large extent, the TPSLCF addresses the core knowledge needs of the government and therefore has the potential to improve public service delivery. However, the findings further signify that currently the TPSLCF does not stand as a holy grail of service delivery as there are some critical facets in it which need improvement. It is recommended in this paper that there is a need to review and customize TPSLCF as the way to align it with the current and future needs of the leaders and the governments. The article concludes with implications for future research and practices.