An italian, a philosopher actually, or mathematician, came up with the concept. That twenty per cent of the population, no matter what the population is or the topic is, generates eighty per cent of the value. Eighty per cent of your sales usually come from 20 per cent of your customers. Eighty% of your great ideas come from twenty per cent of your employees. It's credibly consistent. If you want a really high a probability of success, the likelihood that you're going to get a big win is exceptionally low....