Commonwealth Financial Planning general manager David MacKay is set to leave the company following a string of internal changes.
MacKay's departure comes as Colonial First State (CFS) undertakes further internal changes to its financial advice division.
"I'm in the process of completing the operating model by directing our resources to where they are needed most. By this I mean the centres of excellence will provide all of the support services to our suite of advice brands across the board," CFS advice business general manager Paul Barrett said.
"So whereas before we had some of our support services sitting inside Commonwealth Financial Planning, they will now sit inside the centres of excellence.
"As a result of this, Dave MacKay has made a decision to pursue opportunities externally."
Barrett said the firm has commenced a search to replace MacKay.
"Importantly, Dave will remain with the business for the next few months as we transition," he said.
As well as changes to its centres of excellence, CFS has also renamed its advice academy as the Advice Institute.
MacKay was appointed to the role of Commonwealth Financial Planning general manager following the departure of Tim Gunning in September last year.
In December last year, CFS reshuffled its executive advice team, creating four new roles within the CFS Advice Business.
The reshuffle has meant Financial Wisdom general manager Tim Browne will assume the role as head of advice delivery, while CFS head of distribution services John Carnevale will take on the role as head of advice academy.
Other staff changes include head of distribution development Matthew Brown taking on the new role as head of advice development, and Commonwealth Financial Planning head of strategy Helen Blackford stepping into the role of head of advice business management.
Last month, Browne left his position as CFS head of advice delivery and took up a role with CommInsure's retail advice business.