Domino’s Pizza UK & Ireland, the pizza delivery business, has appointed two new non-executive directors, Syl Saller and Helen Keays, to its board. Saller, who has over 20 years of extensive marketing and brand experience both in the UK and the US, is currently global innovation director for Diageo, having joined the business in 1999.  She previously held senior marketing and general management roles at Holson Burnes Group and Gillette in the US. Keays, who has over 20 years' experience in travel, retail, consumer markets and telecoms, is currently a consultant and a non-executive director of Majestic Wine.  The majority of her career was spent at GE Capital and Vodafone Group, where she held various senior marketing roles. Last month, the c.675-strong chain, which is led by chief executive Chris Moore, announced that sales through its mobile channels had topped £10m for the first time.