Kenya lost its best chance to fight corruption during Kibaki's first term, and, at the present rate, it will be a long time before it gets back to that position. Kibaki came into power with enormous goodwill, and he said all the right things at the start. That encouraged people. President & people determined to do right. Or so it seemed.
One of my strongest memories of that time was being in a matatu from the outskirts of Kisumu to the city centre. A copper stopped the matatu for a bribe. The passengers gave him a mouthful, and a couple chased him the road. And I heard of similar happenings elsewhere: citizens finally standing up. A year later, on the same route, it was back to business as usual---because Kibaki had already gone back to business as usual.
Uhuru could actually guarantee himself a second term simply by cracking down hard on corruption. He is either unwilling or unable to do so. Perhaps too many of his friends are involved, including some who helped him with a certain little criminal matter. It's certainly hard to understand how he can tell people that the head of the corruption-snake is in his own office, action will be taken, and watu wajipange!, and then absolutely nothing happens.