England Rugby 2015 chief executive Debbie Jevans has announced her intention to resign just six months before the Rugby World Cup on home soil.
The 54-year-old, who took on the position in 2012, has cited "personal reasons" for her decision to step down.
A statement released by Jevans read: "This is the right decision for me to make at this time. I am immensely proud of the team and all that we have achieved in the time that I have been chief executive.
"Everything is in place to ensure that this is the best Rugby World Cup ever, and I am confident my team will deliver an exceptional tournament.
"The organisation is strong, there is a great team in place and I am really looking forward to watching the Rugby World Cup as a fan later this year."
England Rugby 2015 chairman Andy Cosslett added: "On behalf of the ER2015 board I would like to extend our enormous appreciation for all that Debbie has brought to the role.
"Her legacy will be seen during and after the tournament is delivered, with a sporting event that I fully believe will be both memorable and inspiring, creating a step change in interest and participation for the game in this country."
Stephen Brown will now take charge of the tournament operation as managing director.
