By David Craven Relaxed Sam Burgess says “the good, bad and ugly” of his playing career has prepped him as Super League’s youngest head coach. The ex-England captain, 35, took charge of Warrington for the first time in Friday’s friendly against Widnes. The real business gets underway at beaten Grand Finalists Catalans on February 17. But former dual-code international Burgess, who found both fame and notoriety Down Under with South Sydney, isn’t worried about a lack of experience heading into his first top job. He said: “I know I’m 35 but from 15 to 35 – the last 20 years – there’s been a lot …