Lizard of Oz Eddie Jones ups intensity to get England through pit of snakes | Robert Kitson

The threat of a crushing defeat to South Africa lurks on Saturday, so the England coach is forced to continuously find new ways of ensuring his players never stop improvingAside from the first pictures of Donald Trump inside the White House there was no disputing the week’s most terrifying image. Those cold-hearted racer snakes lying in wait for young marine iguanas on Sir David Attenborough’s wonderful new BBC natural history series also happened to be an ideal allegory for the treacherous landscape of professional sport. To elude crushing disappointment requires determination and, above all,…