This is a systematic and objective study of the effects of the Quality Assurance and Standards Officers assessment visits to secondary schools on the utilization of instructional media in the teaching of English subject and its performance a case of Uasin Gishu District in Kenya. It reveals that the Kenyan government policy entails allowing a broad based participation in the provision of education with all stakeholders taking responsibility for planning and implementation. In tandem with this policy direction is the decentralization of decision-making and resource management to lower level structures with Ministry of Education maintaining general oversight and overall superintendence. The findings demonstrate that the arrangement has resulted in major weaknesses in management and delivery of services particularly at the school level. Mechanisms to coordinate the various state agencies involved in the supervision and management of education are lacking and capacities of districts and school level structures that manage education services are inadequate particularly at the district and school level planning and reporting, assessment, monitoring and evaluation of resource management.