This report, originally written for eBusiness professionals, is also relevant for application development and delivery (AD&D) professionals who will play a significant role in planning, building, and running responsive websites. The "one Web" concept will smash organizational silos and unite teams, systems, and methodologies that drive digital customer experiences on the Web. From a technical skills angle, AD&D teams must ensure that their HTML5, CSS3, JavaScript, mobile performance testing, and Agile development capabilities are sufficient to support a shift to responsive web design (RWD). AD&D pros must also understand the needs and priorities of line-of-business and marketing leaders — even if they're already advocates of RWD.