Hasn't got a clue? I believe he's been quite open and honest, certainly more so than other CEO's (barring perhaps his predecessor, Hadebe), about how realistic it is for Eskom and the state of current generation to eliminate load-shedding in a short time frame.
Secondly he's been CEO since January 2020: A grand total of 14 months. Eskom has habitually changed CEO's in revolving door fashion for the last decade and this is part of the problem. If you now want to measure his paltry year-and-a-bit against others as if that is somehow long a CEO should last or how long it should take to rectify a problem decades in the making then you truly have rocks in your head or have an agenda to push.