Adam Mack, the UK CEO of W tells the Echo Chamber what it takes to be an agile agency. Mack joined W founder Warren Johnson at the agency in January this year after leaving Weber Shandwick, where he was chief strategy officer for EMEA for six years. He also spent time at Freuds as director of strategy. He joins the Echo Chamber to talk about what business buzzword “agility” means in the context of PR agencies.