Launched in 2005 in the ashes of Mad Dogs and Englishmen, Walrus is a fiercely independent shop that’s worked with such clients as Amazon, HBO, and Staples. Frances Webster — who co-founded Walrus with her husband, Chief Creative Officer Deacon Webster — has been outspoken about the need to train more women for agency leadership roles. She discusses the decision to offer media and buying services, reconciling programmatic with creative, and her clients’ biggest pain points as marketers gear up for the ANA conference next week.