Newport Gwent Dragons are searching for their second chief executive in 18 months as Mike Jenkins has left the Welsh region.
Jenkins, who replaced Gethin Jenkins in August 2010, has decided to step down after helping in the first phase of the Rodney Parade redevelopment.
Jenkins acted as legal counsel for the region in their transitional period.
"My remit when I joined the Dragons as chief executive was short term and specific," said Jenkins.
"To drive through the re-development of Rodney Parade.
"I had previously been involved in the project as legal advisor to the Dragons and when offered the opportunity to see the project through to a successful conclusion, was excited by the prospect of contributing further albeit with a more commercial focus as chief executive.
"I am immensely proud of what we have achieved here at Rodney Parade, delivering such a significant project on time and on budget has been a credit to all involved."
The first phase of the Rodney Parade regeneration was completed in September when the new Bisley Stand opened its doors for the Dragons' league opener against Aironi.
"The development of the Bisley Stand was a significant challenge for us and Mike's role was to oversee the finance and development of this ambitious project," said Dragons chairman Martyn Hazell.
"His contribution has been invaluable in ensuring that both the Dragons and Newport have the corporate facilities to underpin rugby in the region and we thank him for his hard work and dedication to this project.
"Both the region and Rodney Parade are in a position to move forward and we have a strong team at Rodney Parade to make that happen.