The first time that builders of a new-growth business need to assess what the target customers really are trying to get done is when they are searching for the disruptive foothold—the initial product or service that is the point of entry for a new-market disruption. When managers position a disruptive product squarely on a job that has been poorly addressed in the past that a lot of people are trying to get done, they create a launch pad for subsequent growth through sustaining innovations that build on the initial platform.