Adecco, the world's largest temporary staffing group, has parted company with its finance director and the head of its North American business, Adecco Staffing, just days after revealing possible accounting irregularities and weaknesses in its internal controls.

Felix Weber, Adecco's finance director and Julio Arrieta, chief executive of Adecco Staffing have both resigned, and replaced by Andres Cano, group financial controller, and Philippe Marcel, chairman of Adecco France.