The new US 'boss' of Iraq arrived in Baghdad to revitalise a stuttering reconstruction process which has been slammed by Iraqis for being slow to restore security and vital services. Paul Bremer who replaces Jay Garner at the helm of the much-criticised US administration currently running Iraq, arrived in the capital after a brief visit to the second city of Basra. His arrival is part of a shake-up in the US leadership team in Iraq after Barbara Bodine, the official charged with running Baghdad and central Iraq, was recalled home Sunday after less than three weeks in the job. The future for Garner, who has effectively been demoted by Bremer's arrival, remains unclear following newspaper reports that the retired three-star general will return home with his aides within the next weeks. The revamp comes in response to mounting frustration among Iraqis over the anarchy and chaos that has plagued the country since US forces deposed Saddam Hussein's regime. Many Iraqis are still without running water and electricity, while uncollected rubbish and sewage are rotting in the streets. The World Health Organisation warned last week of the danger that a cholera outbreak could strike Basra. General Richard Myers, the chairman of the US Joint Chiefs of Staff who arrived in Basra from Kuwait alongside Garner and Bremer, pledged that the US administration would do its upmost to restore security. Garner rejected the reports of his early departure, while Bremer expressed hope to work with his predecessor in the next weeks and "get a bunch of serious milestones accomplished." As Bremer embarked on his mission of rebuilding Iraq, a top Iraqi Shiite leader reached the end of a triumphant homecoming tour marking his return from 23 years in Iranian exile. Mohammed Baqer al-Hakim, the 66-year-old head of the Supreme Assembly for Islamic Revolution in Iraq (SAIRI), was due to arrive in his birthplace of Najaf after a tour that has seen tens of thousands of Shiites welcome him home. Hakim is feared in in Washington as an Iranian stooge who wants to impose a Shiite theocracy on postwar Iraq, and some observers have compared his return from exile to that of former Iranian leader Ayatollah Ruhollah Khomeini to Tehran in 1979. In an interview with AFP, Abdul Aziz al-Hakim, the brother of the Baqr al-Hakim said that Hakim is seeking to whip up anti-American sentiments. US Central Command said coalition forces had released the man who proclaimed himself leader of Baghdad after the city fell to US troops, following two weeks in custody. Centcom said Mohammed Moshen al-Zubaidi, a monarchist, has now admitted he overstepped his authority in awarding himself the position and has pledged to work with the coalition to restore order in Baghdad. In Britain, a cabinet minister who savaged Prime Minister Tony Blair's support for Washington's policy on Iraq in the run-up to war as "reckless" announced her resignation from the government. International Development Secretary Clare Short said in her resignation letter to Blair that she could not stay in the cabinet as the United Nations was not playing a leading role in establishing an Iraqi government. "I am afraid that the assurances you gave me about the need for a UN mandate to establish a legitimate Iraqi government have been breached," she told Blair in the letter. Short is the second minister to resign from the Blair's cabinet over London's unwavering support to Washington's Iraq policy, after former foreign minister Robin Cook resigned as leader of the House of Commons in March. **PHOTO CAPTION*** Paul Bremer, left, the new American civilian administrator of Iraq, speaks to the media on arrival at Baghdad airport, Monday, May 12, 2003, in this image made from television. (AP Photo/APTN/Pool)