Unfortunately you see this pattern often after a regime change, that the group that is able to seize power -- in this case, the ANC -- is not necessarily compet

Unfortunately you see this pattern often after a regime change, that the group that is able to seize power -- in this case, the ANC -- is not necessarily competent enough to govern. These are different skillsets. Message discipline, mobilization, guerrilla tactics, etc, don't transfer over to keeping the lights on. You have similar issues with present-day Taliban in Afghanistan.