If appointed, Tandy will have his work cut out as he takes on a national side in crisis that have slipped to record low of 12th in the world rankings.
Wales have suffered a record 17-match international sequence with no Test victory since beating Georgia in the World Cup in October 2023.
Tandy has been out of Wales for seven years after coaching Ospreys between 2012 and 2018, winning the Celtic League title in his first season in charge.
The 45-year-old left for Australia for a role with the Sydney-based Waratahs before linking up with Gregor Townsend’s Scotland in 2019.
He also adopted a defence coach role with Gatland’s British and Irish Lions squad in South Africa in 2021.
He could be aided in a Wales backroom staff by the likes of Harlequins head coach Danny Wilson and Sherratt, who have previously worked together at Cardiff when the Arms Park side won the Challenge Cup in 2018.
