Hall of Fame Profile: Tammy Ackerman Tammy Ackerman believes in the power of storytelling. It’s a skill she learned while in college, and one she has continued to master throughout her professional journey. Member Perspective: 5 Rules of Thumb for Data-Driven Omnicommerce Marketing Arc Worldwide's Andrew Janis shares rules of thumb for effective, data-driven shopper marketing. Column: Silver Linings & Gold Standards Walgreens Sweeps Up SmartSource The Category Captain and the Consolidating Food Industry