When watching the world championship rugby you may have seen many sprints and scrums during the game. A scrum in rugby language is “a method of restarting play in rugby that involves players packing closely together with their heads down and attempting to gain possession of the ball” [ref. Wikipedia]. It sometimes takes quite some time and for a layman like me it seems not logical at all. Just pick up the ball and go for the run!
Scrum seems nowadays more related to agile development rather than to rugby. It is everywhere, it is successful and even within my company KT, the product development group learned their lessons using the agile method for developing a new range of products. Progress, not perfection is key.