Don Pyke has stepped down as coach of the Adelaide Crows, the club announced on Thursday afternoon.
Pyke has coached the club for the past four seasons, including taking the club to the 2017 AFL Grand Final.
The club was in the midst of an internal and external review after failing to make the finals in the past two seasons.
“It has been an absolute privilege and joy to coach this Club and I have loved my time here trying to achieve great things with our players for our Members and fans,” Pyke said via the club’s website.
“I came here with the aim of helping our players to individually and collectively be the best they can be and this has been my driving force.
“It has been a wonderful ride with some great memories and unfortunately some sad times, but now it is clear to me it is my time to move on knowing I have given my all.
“This decision has been extraordinarily difficult to reach but vital for me is the Club and playing group being able to move forward, and the health and happiness of important people in my life.”
Pyke is the Crows third longest-serving coach and the second to reach an AFL Grand Final.
The club has said it will name a panel in the coming days that will be charged with the responsibility of finding a new senior coach.