I've always wondered if the advice to avoid argument and criticism from "How to Win Friends and Influence People" was at odds with internal business meetings. It seems that extremely successful businessmen like Bill Gates, Steve Jobs, and Larry Ellison create a culture where criticism and argument form the cauldron from which great ideas are culled. At the same time, the human mind is seldom changed by argument or logic.<p>My current opinion is that the Dale Carnegie way of business is great for sales or extremely flat organizations, but in larger or more established organizations, credible and aggressive (almost totalitarian) leadership can build "consensus" more effectively through argumentation, criticism, and decisiveness.<p>Does anyone have any tips on how best to arrive at decisions in a <4 person startup?