Email Updated October 22, 2019 17:51:43 Photo: Raelene Castle defended Rugby Australia’s coaching set-up. (AAP: Dean Lewins) Related Story: Wallabies’ failed Rugby World Cup campaign signals time for regeneration Related Story: After five years, one thrilling World Cup run and one major letdown, Cheika steps down Related Story: As Cheika era ends, overseas rugby figures slam his ‘selfish’ approach Map: Australia Rugby Australia boss Raelene Castle has expressed surprise over Michael Cheika’s statement there was “no relationship” between the pair. Key points:Departing Wallabies coach Michael Cheika said there was “no relationship” between him and Rugby Australia boss Raelene CastleCastle defended the appointment of a director of rugby to oversee Wallabies set-upCastle said the next Wallabies coach will be appointed following a review After Saturday’s devastating Rugby World Cup quarter-final defeat against England, Cheika announced he would step down at the end of the year.The outgoing coach let fly with come choice statements about Scott Johnson’s appointment to a director of rugby role in December last year, saying it disrupted his preparation.However, Castle stood by her decision to implement the coaching change less than 12 months out from the World Cup.Speaking on Fox Sports, Castle said although she was aware of…