Malcolm Turnbull has always known what he wants, and why. He eased into the leader’s chair on Tuesday with an authority that immediately put the Government on notice that things were now going to be very, very different for it. On Turnbull’s team things will be very, very different, too. And not just because he’s leader.

Barnaby Joyce, the maverick elected leader of the Nationals in the upper house this week, says he is unable to provide Mr Turnbull with a commitment to hold the Coalition line on all issues. “At times there will be issues that there will, possibly, be a difference on, so on this occasion I humbly decline,” Senator Joyce said today.

Senator Joyce, who has crossed the floor to vote against the Coalition more than 20 times since he entered the Senate in 2005, said his new position as the Nationals’ Senate leader would not alter his ways. “I am who I am by the grace of God, and I’m not going to change,” he said.

The vote for the leadership was held among Senator Scullion and the four Nationals Senators. The nine lower house MPs did not vote. Federal Nationals leader Warren Truss was informed of the planned change only last night. It was unclear today whether he supported the move.

This week was a week of number twos on a variety of fronts. In the US, Joe Biden became Barack Obama’s new sidekick, while in Australia, the minor parties in the Senate geared up to take on their new roles as second fiddles. Meanwhile, in the entertainment world, ‘Stargate Atlantis’ was cancelled and replaced by ‘Stargate Universe’.

Independent Senator Nick Xenophon said today that he was now convinced the FuelWatch scheme didn’t stack up. If the Coalition decides to oppose the measure the Rudd Government will be forced to rely on Mr. Xenophon and the minor parties to get the policy through the Senate.

The GroceryChoice website shows a trolley full of food on Queensland’s Sunshine Coast is worth about $150, while the same groceries in Darwin and Hobart cost about $12 more.