Argentina have benefited from avoiding Six Nations, Pablo Bouza says

• Rugby Championship has helped Pumas improve, defence coach believes• Bouza says it is easier to get quick ball in southern hemisphere conditionsAfter Argentina reached the World Cup semi-finals for the first time in 2007 they implored the Six Nations committee to allow them to join the championship, not least because most of their players were based in Europe. It did not happen and eight years on their presence in the last four is less of a shock than it was then and they have a lot to thank the major European nations for.Instead of being caught up in the rough and tumble of the Six Nations …