Billington Cartmell has strengthened its integrated credentials with the appointment of two creative group heads. The copywriter Christina Angus and the art director Cathryn Elmes join from Lida, where they spent the past 18 months working on accounts such as Mini, Royal Bank of Scotland and British Airways. In their new roles, they will report to the group creative director, Beri Cheetham, to develop the agency's integrated offering, concentrating on digital and direct. Angus and Elmes met at Claydon Heeley eight years ago. They have also worked at 141 and Blac.