It's an idea stolen from tech, rooted in the practice that collaboration is crucial and perfection is not the goal. Together, the agency and the client runs fast and hard (hence, the sprint). The creative process is iterative. And the goal is to create something that is good enough to give you data. (We call this an MVP or minimum viable product.
We've applied this methodology to content.
We're celebrating over here at Spirit Animal because we just sprinted with a health care brand, resulting in 70 assets in 2 months:
How'd we do it? We created an infographic to help break it down for you.