Since the promulgation of the Constitution of Kenya in 2010, devolution has been presented as the principal mechanism for redressing the historical marginalization of Kenya's arid and semi-arid regions. More than a decade into the devolved dispensation, Turkana County, the country's second-largest county by land area and among its poorest, illustrates both the promise and the limits of this reform. Drawing on Auditor-General reports, parliamentary records, national statistical data, peer-reviewed studies, and contemporaneous news reporting, this paper examines eight interlocking governance deficits in Turkana County: (1) corruption and misappropriation of public funds; (2) limited innovation and weak digital infrastructure constraining e-government; (3) high adult illiteracy and constrained human capital; (4) structural dependency on donor and humanitarian aid; (5) weak monitoring and evaluation (M&E) systems undermining project sustainability; (6) the absence of structured, competitive human-resource frameworks in the county public service; (7) patronage-oriented cash disbursements at the expense of infrastructure investment; and (8) a persistent gap between projects reported as "complete" in audit records and their actual, often non-functional, state on the ground. The paper situates these findings within good-governance and principal-agent theoretical frameworks and within the broader literature on devolution and corruption in Kenya. It concludes with a set of policy recommendations, including the adoption of performance-linked contractual employment in the county public service, strengthened County Integrated Monitoring and Evaluation Systems (CIMES), and greater public disclosure of project status and expenditure.