Collingwood chief executive Gary Pert says the timing is perfect to announce his resignation after a decade at the helm of the AFL's biggest club.
Pert told president Eddie McGuire late last week that he was leaving, with the decision made public on Monday, less than 24 hours after a stirring win over West Coast.
The one-time All-Australian-turned-administrator is leaving as the board conducts a wide-ranging club review.
"10 years is enough," Pert said.
"To implement the outcomes that will come from the blueprint review, Collingwood needs someone prepared to be committed all the way.
"The future of this football club is being re-imagined.
"Collingwood is preparing for significant change and I needed to decide whether I was prepared to commit long-term."
The 52-year-old ruled out applying for the vacant role as the AFL's general manager of football operations, saying his immediate priority was to spend more time with his family.
McGuire paid tribute to his longtime friend and loyal lieutenant.
"Gary has been very selfless in making the decision at a time that suits the football club," said McGuire.
The pair held the club's key off-field roles during the 2010 premiership and helped to mastermind the high-profile coaching transition from flag-winner Mick Malthouse to Nathan Buckley.
Businessman Peter Murphy, who is overseeing the blueprint review project, has been appointed interim CEO.
Pert will remain at the club until the end of the season to assist Murphy.
Prior to joining the Magpies, Pert worked at media companies Austereo and Channel Nine.
"Perty, on behalf of everyone associated with the club, thank you," - Eddie #sidebyside pic.twitter.com/VCS4HIBbfK
— Collingwood FC (@CollingwoodFC) July 24, 2017
Thank you, Perty. Your role in the 2010 triumph + your legacy will live on forever. Thank you for your 10 years of service #sidebyside pic.twitter.com/NwsgMsTaI3
— Collingwood FC (@CollingwoodFC) July 24, 2017