The news follows a string of painful account losses, including Asda (£43 million), the Post Office (£12 million) and MFI (£27 million).
Tim Lindsay, the UK group chairman, confirmed that Duncan was leaving. He said that Publicis was sorry that Duncan had decided to resign and added that it was something he had been considering for some time.
The MFI account moved to M&C Saatchi at the end of the year, while Asda moved to Fallon in January. The Post Office account is still in contention, but Publicis declined the opportunity to repitch. Today it was shortlisted for the £7 million Vision Express account.
See Thursday's edition of Campaign for the full story.