Lynn faces a huge task given the turmoil involving the national team in 2024.
On the pitch, fully-professional Wales recorded just four wins in 11 Tests, finishing bottom of the Six Nations and managing just the one win in WXV2.
Off the pitch, there was a long-running contract row with the WRU, prompting another review, with relationships between players and management strained.
Lynn will be tasked with not only galvanising the squad but achieving something none of his predecessors has done before – breaking into the world’s top five teams.
When the head coach vacancy was announced, the WRU said it was seeking an individual to help establish Wales alongside the likes of England, Canada, New Zealand and France.
Wales are currently ranked 10th, but did reach an all-time high of sixth in 2023.