It's actually really, really REALLY simple. Here goes:
This is not fixable without pain. And there is going to be a lot of pain. If there is not a lot of pain, it will not be fixed. What do I mean by pain? Start treating the fiscus with respect. Respect the money, and put it to productive use, instead of using it as a means to an ideological end. "Ideology uber all" will need to end. That means grants will need to be reigned in, excessive salary increases will need to end, corruption will need to end. Basically, this GrEaT sOcIaL ExPeRiMeNt will need to end.
Can this be done? My gut feel says "no", the ANC will not be willing to take the pain. So the promises will get bigger, Jan will be blamed more, expect more BEE, expect more taxes in the form of NHI and social security, pension reform, increased PIT and corporate taxes. And all these funds to then be squandered and stolen.
Basically, expect the circling of the drain to continue but slowly pick up pace. I don't expect Zimbabwe, I think Angola is more apt, without the internal wars. Corrupt to the core, an enriched few, the majority neglected to fend for themselves, a small economy just to keep food in some bellies, politics and state employment the biggest business in town.
(holy crud, it's not actually "simple" at all, is it!

)