Going into the ICC World Cup, the perceived wisdom was that only three sides had a realistic chance of winning the tournament: Australia, New Zealand and South Africa. And while co-hosts Australia and New Zealand’s performances thus far have only served to underline their credentials, South Africa have left a lot to be desired in their two games. New Zealand have looked focused and determined in their three games in the tournament; a well-rounded performance against Sri Lanka was followed by maulings of Scotland and England which were set up by dominant displays with the ball. Due to the vagaries of scheduling and a tropical cyclone in Brisbane, Australia have only played one game, a comprehensive dismantling of England in which the Aussies were superior in every facet. South Africa, on the other hand, have looked anything but convincing. They were saved by a record fifth wicket stand between JP Duminy and David Miller against Zimbabwe. The Proteas then laboured while defending 339, winning by 62 runs – a relatively small total given the gulf in class between the two teams. They were then comprehensively outclassed by India at the MCG. At first they struggled to contain India’s top order…