Exiled former minister Jane Garrett has come under fresh pressure to resign from Parliament, as senior Labor party figures warn the state government is in danger of being derailed by infighting.

As a bitter fallout continued following claims Ms Garrett had been leaking to the media, Treasurer Tim Pallas said she should consider her position.

"If she's not contributing to the cause that she was elected to, she should think about it," Mr Pallas said in response to questions about whether the embattled MP should quit.

And while opinion is divided over Ms Garrett's long-term political future, there is near universal concern the government's achievements are being overshadowed by the dispute.