Newman shakes up Qld's department heads QUEENSLAND Premier Campbell Newman has announced a big shake-up of the state's department heads. Mr Newman released a list of director-general changes on Monday as part of his plan to improve the public service. Public Service Commissioner Ian Maynard will become the director-general of Queensland Health following the departure of Tony O'Connell. Environment DG Andrew Chesterman has been shifted to fill Mr Maynard's previous job. Energy and Water Supply DG Jon Black will now head the environment department while Natural Resources and Mines DG Dan Hunt will take on Mr Black's old role. Dr Brett Heyward has been promoted from being on a health taskforce to becoming the Natural Resources and Mines DG. Sue Rickerby has also been promoted from the Department of Premier and Cabinet to head the Science, Information Technology, Innovation and the Arts department. Former senior environment bureaucrat James Purtill, who left the public service in 2008, has returned to head the Aboriginal and Torres Strait Islander Affairs and Multicultural Affairs department. Mr Newman said he's determined to make Queensland's public service the best in the country. "These appointments will provide the leadership and expertise needed to achieve that goal," he said. They are all talented, highly qualified and committed to delivering the first-class public services Queenslanders deserve. Annastacia Palaszczuk said it was also time for Mr Newman to shake up his ministry. "There's a number of ministers who are underperforming and if you're doing such a massive shake-up of your bureaucracy, there's definitely going to be something happening in relation to ministers," she said.