yeah, Nice Book.. He has used Very Indianized english. Although that last part IS a bit unbelievable and BORE in fact - at least to me. Havent read Five Point Someone yet, but heard a lot abt it and gonna buy it within these days.
Yeah, what's the 30-10 concept? I've heard of the 70-30 rule, 30 percent of your people cause 70 percent of the problems. Or, 70 percent of your work comes from 30 percent of your people. Its called the Pareto principle. The person who coined that term, Pareto, also invented a method of superimposing a line-graph on top of a bar-chart in order to contrast to different types of information over a timeline (Pareto Chart). Not to be confused with Ishikawa, who was from Japan, and invented "fish-bone" diagrams that are used to identify that 30 percent that's screwing up the rest of the operation.
// more useless knowledge, but fun, none-the-less.
If at first you don't succeed, try, try again. Unless you really suck at it. Then, you might just want to try something else, if you dont' want to be a loser I mean.