Canterbury have confirmed the sudden and surprise departure of chief executive Andrew Hill, who took a lead role in the NRL club's rebuild.
Hill helped lure new coach Trent Barrett to the Bulldogs and was involved in the signing of star Melbourne speedster Josh Addo-Carr for the 2022 season.
He was also instrumental in securing the services of former All Blacks coach Steve Hansen as a high-performance consultant.
The Bulldogs also recruited Corey Allan this week, joining Kyle Flanagan, Nick Cotric and Jack Hetherington as new faces at the club.
In his three years in the position after moving across from the NRL, Hill oversaw the transition through two coaches with Des Hasler and Dean Pay both leaving during his tenure.
Hill spoke last month of his passion for reviving the once powerhouse club , which finished a disappointing 15th last season, but said he was ready to take on another challenge.
"I have enjoyed my time at the Bulldogs and after three years of service in the role the time is now right to look at my next challenge," Hill said in a brief statement.
"I wish the club and team every success for the future."
Bulldogs chairman John Khoury also didn't give away reasons for Hill's abrupt departure in his statement.
"Andrew Hill has made a significant contribution to the Bulldogs over the past three years," Khoury said.
"He has strengthened all areas of the club and will leave us in a strong position for a new CEO to take over.
"We are appreciative of his professionalism in signalling this early enough for us to find a replacement in time for the start of the season."
Current Chief Financial Officer John White will fill the role of interim CEO,.