By Matt Hardy Warren Gatland and the Wales national rugby team are basically a sporting version of conjoined twins. Since 2007 the New Zealand coach has had some form of affiliation with Wales – except from a two-year hiatus between 2020 and 2021 – but back in a role many thought he had given up for good little has changed. Wales were competitive in his early years, winning a famous Grand Slam in 2008, but lost in the semi-finals at the World Cup three years later. A victory in 2012 – a second consecutive one in the first year of a four-year World Cup cycle – culminated in a quarter-final exit…