Application development and delivery (AD&D) teams are moving away from the slow, expensive, IT-led rollouts that often failed to achieve desired business benefits. Smart AD&D leaders are now shifting to Agile deployments that deliver fast results and incorporate customer input and experience design. This report discusses today's Agile and design-centric mandates for application-implementation projects and the third-party providers that support them. This report was originally published on November 11, 2015. Forrester reviews and updates it periodically for continued relevance and accuracy.