The experiences of dozens of the world's best practice firms in CI clearly indicates that the best CI emerges when the end user and the CI professional have regular contact, scheduled and unscheduled, during the work on the assignment. That way the end users can be involved at every stage of the CI cycle, to a greater or lesser degree. The result is that the end users will receive a superior intelligence product, particularly when the CI managers realize this and take care to make sure that the end users continue such involvement.