“60–30–10 rule.” He found that the day-to-day “tweaking” by team leaders and members only determines about 10 percent of performance. That 30 percent stems from the design at the launch—at least in teams that have a short life, such as the cockpit crews in commercial airlines. And a whopping 60 percent of performance is determined by what Richard called “prework”: ongoing design choices including strategy, size, rewards, norms, routines, rituals, how work is divided up and coordinated, and who makes which decisions.
