The Law of the Vital Few
by Keith Wittenstein
"Coach Greg Glassman has said, "We work with a cast of about thirty exercises where about fifteen account for 80% of the workouts. The cast of characters that comprise our routines are so potent in increasing strength from head to toe that regular exposure to any of them nearly guarantees improvements in the others. Improve your deadlift, bench, and pull-ups and your squat, dips, and rope climb will come up. The neuro-endocrine response of the major lifts is so potent that they alone will increase your strength measured by any other exercise so that seemingly infrequent exposures to some exercises is not a certain disadvantage." (powerathletesmag)
When I read this it made me think of something else I had read. "The Pareto principle (also known as the 80-20 rule, the law of the vital few and the principle of factor sparsity) states that, for many events, 80% of the effects come from 20% of the causes. Business management thinker Joseph M. Juran suggested the principle and named it after Italian economist Vilfredo Pareto, who observed that 80% of income in Italy went to 20% of the population. It is a common rule of thumb in business; e.g., "80% of your sales comes from 20% of your clients." (wikipedia)
