The DUP has revealed a ministerial reshuffle following criticism of 'double jobbing' politicians.
Deputy leader Nigel Dodds leaves the post of Northern Assembly Finance Minister, with Gregory Campbell losing his job as Culture Minister and Jeffrey Donaldson stepping-down as a junior minister.
Sammy Wilson swaps the environment brief for the job of Finance Minister, while Nelson McCausland takes on the sensitive Culture ministry.
Arlene Foster will remain as Enterprise Minister, while former Environment Minister Edwin Poots rejoins the government to reclaim the post.
East Belfast MLA Robin Newtown becomes a Junior Minister.
The changes, which will come into effect after the current Assembly term ends later this month, mean the DUP has reduced the number of sitting MPs who also hold a minister's job in the Northern Ireland Assembly.
'I indicated at the time of my appointment as First Minister that I would make changes to the Ministerial team during the summer of 2009,' Northern Ireland First Minister Peter Robinson said.
'As a party we will continue to work in the best interests of the people of Northern Ireland and I look forward to all our new ministers setting about the business of delivering for the community they serve.'
Mr Robinson and new Finance Minister Sammy Wilson will still be MPs, ministers and Assembly members, while Mr Wilson is also a councillor on Belfast City Council.
However the DUP leader said that he expects his double-jobbing MPs to choose between sitting in Westminster or Stormont.
Today's move had been expected for some time but it was seen to have taken on greater urgency as a result of the recent European election campaign.
The DUP won one of the three European parliament seats up for grabs in Northern Ireland, with Mr Dodds' wife Diane elected as the party's new MEP.
But the party vote plummeted from 32% vote share in last Euro poll in 2004, to 18.2%.