- 1,985 viewsDuration: 2:18The Kenya Revenue Authority now says the decision not to renew the contract of outgoing Commissioner General Humphrey Wattanga is a result of his underperformance at the helm of the tax body, with his tenure being characterised by missed revenue targets. Wattanga’s ouster came months before the end of his tenure, with the authority board embarking on a search for his replacement almost immediately.