The ANC met its alliance partners over the weekend, and it seems COSATU and the SACP have clearly shown their hand.

Possibly one of the more disturbing aspects is this:
Cosatu president Sidumo Dlamini told Reuters the allies would continue discussing its proposal, raised at the meeting, that the alliance and not the ANC, be the centre of political power.

This would shift power away from the party, giving Cosatu and Communist Party greater influence by making them more directly responsible for setting government policy. Such a change, if it happened, could unsettle foreign investors.

Earlier media reports said many ANC officials were opposed to the plan.
from M&G report here
I certainly didn't notice the alliance on the ballot in the elections earlier this year. Not a particularly democratic means to come to power, methinks.