Marginal gains: it's not about the bike

Sir Dave Brailsford from Team Sky once said: "The whole principle of marginal gains came from the idea that if you broke down everything that could impact on a cycling performance — absolutely everything you could think of — and then you improved everything little thing by 1%, when you clump it all together, you're going to get quite a significant increase in performance. So we set about looking at everything we could." 
Team Sky famously went to extreme lengths to identify and