Reference #283: The First 90 Days
By moving people in a desired direction step by step, you can take them where they wouldn't go in a single leap. This is the influence technique of incrementalism.
It is highly effective because each step taken sets a new baseline or psychological reference point. People decide on their next step relative to this reference point, not to where they originally began.
Watkins. The First 90 Days, 2013. (217)