Warren Gatland is a candidate to coach Wales in next year's Six Nations Championship and World Cup if Welsh rugby chiefs decide that Wayne Pivac should be replaced.Gatland, who Pivac succeeded as Wales boss after the 2019 World Cup, could potentially step in as interim head coach on a 12-month contract, the PA news agency understands.It is thought that a number of previously unscheduled meetings involving senior Welsh Rugby Union figures have taken place following an embarrassing home defeat against Georgia eight days ago.And while no decision on Pivac’s future has yet been made – a review of Wales’ dismal Autumn Nations Series campaign could take at least a week – his time appears to be up after 34 Tests in charge that delivered 13 wins, one draw and 20 defeats.The latest loss, a 39-34 reversal against injury-hit Australia after Wales conceded 26 unanswered points during the final 22 minutes, was a ninth defeat in 12 Tests this year.Pivac was due to travel to France on Sunday for a World Cup reconnaissance mission, assessing Wales' four pool-stage venues of Bordeaux, Nice, Lyon and Nantes.But whether he is in charge for the tournament appears increasingly unlikely, while Wales’ Six Nations opener against world number one team Ireland is less than 10 weeks away.Pivac oversaw a Six Nations title success last year, when Wales were seconds away from winning the Grand Slam, and a first victory over the Springboks in South Africa, but the Georgia debacle came just eight months after a home defeat against Italy.In contrast, Gatland’s 12-year Wales reign was studded with success and consistent performances.Wales won four Six Nations titles during that time, including three Grand Slams, reached two World Cup semi-finals and