AANA, IAB and MFA's new document seeks to build trust in Australia's digital advertising ecosystem.
For Q1, growth was just 3.8% as a traditional early year slump was accentuated by back-to-back disasters, according to IAB figures.
The new co-chairs will join current Southeast Asia and India CEO Miranda Dimopoulos.
Nine of 10 respondents to an IAB Australia study say they are placing ads in streaming services, as podcasts also see significant growth.
The news follows on the heels of the agency undergoing a mass rebrand this autumn.
IAB initiative encourages members to commit to actions to improve online ad industry.
Top news, insights and analysis every weekday
Sign up for Campaign Bulletins