Fiji are looking for a new head coach seven months before the Rugby World Cup after New Zealander Vern Cotter resigned on Thursday because of "personal reasons".The 61-year-old took charge of Fiji in 2020 after coaching French clubs Clermont Auvergne and Montpellier.He also took Scotland to the 2015 World Cup quarter-finals.READ | Welsh rugby bans choirs from singing 'Delilah' after sexism rowTevita Tuiloa, the union's interim chief executive, refused to be drawn on who could replace Cotter - "it could be a Fijian or from abroad" - but expects to name a coach by the end of February."Fiji Rugby was blessed to have Vern Cotter come on board, but the call [to resign] came directly from him due to personal reasons," Tuiloa told a press conference in Suva."Time is against us to find a coach to take the Flying Fijians to the next level (at the World Cup), but we are confident we have the players."Fiji have been drawn with Australia and Wales - both of whom also changed head coaches recently - as well as Georgia and Portugal in Pool C at the Rugby World Cup, which will take place in France and starts on 8 September.Fiji's best performance was at the 2007 tournament in France, where they reached the quarter-finals after a win over Wales, before losing to eventual winners South Africa.