Malcolm Gladwell has put together another little gem of an article - how do you win against a much stronger opponent who has more power, more resources, and more skills. This is a vexing problem that one encounters regularly in business, sports, and other walks of life.
Gladwell's key point is that the underdog needs to go beyond the accepted set of rules, work harder, and not be concerned about the "social consequences" of his/her actions. Goliath usually has to play by a set of rules, often assumed. Goliath also sticks to socially acceptable behavioural patterns, which restricts their options.
Gladwell illustrates these concepts with brilliant examples from recent and past history. One of the most compelling examples around which his article is built is how a really "weak" Junior Basketball team executes a unique strategy to consistently beat much stronger opposition.
The entire article is at: http://www.gladwell.com/2009/2009_05_11_a_david.html : a highly recommended read.