Len discusses the tools of the War on Waste: Act-Learn-Act and the 120/20 Rule of Profits. The 120/20 Rule of Profits is a corollary to the 80/20 Rule but allows for the negative numbers of losses against the positive numbers of profits. In that way, the top 20% of customers may account for more than 100% of the profits of a company. Len discusses what actions the 120/20 Rule of Profits forces a CEO to make about the most profitable and unprofitable clients.