Prime Minister Malcolm Turnbull has announced his new frontbench, emphasising the roles of his younger and female colleagues.
The new team will be sworn in on Thursday, boosting the number of women to six in Cabinet and 10 in the executive.
Victorian Nationals MP Darren Chester has been offered the Infrastructure and Transport portfolio previously held by Warren Truss, who announced his resignation earlier this week.
Senator Concetta Fierravanti-Wells will shift from Assistant Minister for Multicultural Affairs to the portfolio of International Development and the Pacific, while Craig Laundy will take over her old role.
Steve Ciobo will take on the role of Trade Minister and will work with newly-appointed special envoy for trade Andrew Robb, who also announced his resignation earlier this week.
Mr Ciobo was recommended for the role by Mr Robb, and he said he was "absolutely honoured" to replace Mr Robb.
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"Andrew Robb is a man who has achieved such an extraordinary amount in his period as Australia's Trade and Investment Minister," he said.
"I'm absolutely delighted that he's going to continue on as Special Envoy in Trade."
Incoming deputy prime minister Barnaby Joyce will keep his Agriculture and Water portfolios, following uncertainty earlier this week.
Assistant Health Minister Fiona Nash is now deputy Nationals leader and as such she will move into Cabinet.
She will take on the roles of Regional Development Minister and Minister for Regional Communications, as well as retaining Minister for Rural Health.
The Nationals have been offered another position in Cabinet, expanding the size of cabinet to 22 people.
Mr Turnbull described the new line-up as "a dynamic team which combines youth, new talent, experience, continuity, and a real sense of innovation and enterprise".
"It's a team that's focused on Australia's future, focused on the policies that will encourage innovation and enterprise," he said.
