Perennial Investment Partners Asia head Diane Lin and portfolio manager Charles Stodart have quit following a shake up of its international operations.

The pair, who will leave the Perennial on March 14, will take external investment management jobs.

"They have made the decision to pursue a different investment philosophy and we wish them well in their future business endeavours," Perennial Investment Partners managing director Anthony Patterson said.

The restructure will see both the Perennial Asia Equity and the Perennial Japanese Equities Trusts come under the leadership of Perennial Investment Partners International head Clay Carter.

"This will result in significant synergies ensuring that the best investment ideas in Asia and Japan are captured by our international capabilities, whilst also bringing the significant global experience of the international team to the Asian and Japan products," Patterson said.

Morningstar analyst Mark Laidlaw said there were no plans to change the fund's current "hold" status following changes last year to the fund's staffing structure. 

"Clay took more of a leadership role last year within the international fund and therefore we don't see the changes as having any material impact," Laidlaw said

Perennial restructured its international equities team in September 2007, with Carter assuming the role of head of international equities.

Three members of the team; Scott King, Alastair MacDonald and Bill Murphy left the firm, while James Soutter and Nayan Sheth joined.

As at January 31, Perennial had $23 billion in funds under management across its range of investment boutiques.