Read this article, it's perhaps the best description of some of the micro things the Boks did to succeed. I commented elsewhere on Stephanie's rush defence onto Ford. Interesting because Rassie himself used exactly the same tactic onto Larkham in the early 2000 period. The Aussies became so frustrated they put Matt Cockbain on the field who punched Erasmus into oblivion on the deck.
It's cool that this tactic was resurrected for the big game....but it's so disruptive one wonders why every team doesn't do it.
The point on the 3 on 2 running pods echo stuff Augie has written and the double tackles was another interesting observation. This starts to make sense of the English malaise.