Adecco’s decision to part company with both its chairman and its chief executive could boost investor confidence, analysts have claimed.

Chief executive Jerome Caille (pictured) and chairman Philippe Foriel-Destezet stepped down last week after a turbulent period for the world’s largest staffing company.

Shareholder and former co-chairman Klaus Jacobs has taken over as interim chief executive and chairman.

German-born billionaire Jacobs also plans to buy more shares in the company, increasing his family’s stake in the firm to 22.9%.

Jacobs’ decision to increase his stake in the company is likely to increase investor confidence, said analyst Chris Burger at investment bank Helvea.

Caille and Foriel-Destezet took over after previous chairman John Bowmer quit in June last year, following a botched set of results that auditor Ernst and Young refused to endorse.

Third-quarter results this year showed the company was still failing to meet market expectations.