Damien McMahon will continue as coach of Perth next year despite a disastrous 2012 season that saw the club miss a 15th successive finals series.

Demons chief executive Marty Atkins said the board had made a unanimous decision to keep McMahon, who has a year to run on his contract. But the club will chase key personnel to support McMahon after completing an extensive review of its operations.

Perth won just six games this year after an off-season recruiting drive that netted the likes of former AFL players Leon Davis, Paul Bevan and Alistair Smith.

Atkins said they would look to recruit a senior midfield coach, strength and conditioning staff and another senior assistant.

"Damien had a very, very good first year and obviously his second year wasn't as good, but there are reasons for that," Atkins said.

"From a club point of view, there will be some significant changes around him to make sure he gets the right support and the necessary guidance going forward."

Subiaco and Peel are also in the process of appointing new coaches, while East Perth expect to lose veteran coach Tony Micale.