PORT Adelaide's Dom Cassisi says he'd surrender the captaincy of the club if it would benefit the side next season.

In the wake of the departure of Matthew Primus as senior coach and the eventual resignation of Brett Duncanson and an external review nearing completion, sweeping change is set for Alberton.

On the eve of his 200th AFL game, Cassisi said "there was no doubt change is going to come" and that he'd be willing to step aside as skipper if it would help get the struggling club back on track.

"All I want is to see this football club win games of footy, if that means that a new captain is in line to get the wheel in motion for that, then that's what it takes," Cassisi said.

"I'm more than happy to take the role on again next year and likewise I'm more than happy to support someone else to the best of my ability if it is someone else.

"The paramount thing for this club is to get back on track."

The 29-year-old re-signed with the club for two more years earlier in the season and admitted this week was the hardest of his career.

He said the playing group felt a level of responsibility for Primus' downfall, with underperformance leading to a second-straight below par season.

Monday was the second time in Cassisi's career that he had seen the forced resignation of a Power coach, after Mark Williams walked form the position in late 2010.

"Our list has changed a fair bit since Choco was here, so a lot of our players didn't experience that, but for us guys who have been around for a while, definitely we need to change things and look to improve more rapidly," he said.

"It's disappointing, but I can't stress enough how much we were behind Matty.

"That's where our sense of remorse lies in that we weren't able to deliver more often for him.

"I can stand up here and talk as much as I want, but our actions speak louder than words and we need to change our actions."

Key to changing the group's actions, Cassisi said, was remaining united.

While interim coach Garry Hocking conceded that when a coach had been forced out of a club differences could emerge within a playing group, Cassisi insisted it was not the case at the Power.

Cassisi said he hadn't managed to speak one-on-one with Primus since he left the top job, but would look to do so over the next week.

"I spoke to Matty on Sunday, obviously when it all sort of was known and obviously he was very shattered, so it was hard to have a really good conversation.

"I was in shock and I'm sure he was as well ... I caught up with him quickly on Sunday night but it was a group of us so it was hard to get one-on-one time with him, but I'll catch up with Matty in the next week or so.

"We (the players) do feel a sense of responsibility for what has happened so Matty would be aware that the players feel bad and are hurting as well."

Harry Thring covers Port Adelaide news for AFL.com.au. Follow him on Twitter: @AFL_Harry.