just-food's headlines were this week dominated by the Europe's largest retailers, with Carrefour, Tesco, Ahold and Delhaize all making key announcements. While Tesco welcomed a new chief executive, Fonterra announced its boss would leave the hot seat after eight years. Elsewhere, Fairtrade Fortnight started in the UK and we marked the event with one of two CSR interviews to feature on the site this week. Click on the headlines to find out more.