Western Force and head coach Michael Foley have parted ways with immediate effect, the Super Rugby outfit announced on Thursday.
Force are last in the Australasian Group after 12 games, having won just twice in 2016 - leaving them out of contention for finals.
Foley, 49, joined the Perth-based club in late 2012, but failed to reach the finals in each of his four seasons in Western Australia.
"Michael is a fine coach and has done a good job in his four years with the team considering some of the obvious challenges he's faced," RugbyWA chief executive Mark Sinderberry said in a statement.
"We would have liked to have had more success during this time but Western Force also had its most successful season under Michael in 2014 [finishing eighth].
"With the team out of contention for finals, it was appropriate timing for both parties to look to the future and that's why we have agreed to part ways.
"We wish Michael all the best for the future and will commence a process together with the ARU [Australian Rugby Union] to appoint a new head coach for the 2017 season."
Force senior assistant coach Dave Wessels will assume the caretaker role for the team's final three fixtures of the 2016 season.