Wiwat’s and Silbert’s work provides us with a classic example of the Pareto Principle, the old 80-20 Rule. This rule suggests that for whatever your change topic may be, 80 percent of your results come from 20 percent of your efforts. This means that even for the most complicated problems, ones that are influenced by, say, 10 different behaviors, influencers should focus their efforts on the top 2—and only the top 2. If they spend time on the top 4 or 5 behaviors, or, worse still, on all 10 behaviors, they’ll spread themselves too thin.
