The evolution of the stiff upper lip is unexpectedly complex - emerging out of the French revolution and the Napoleonic wars as a reaction to what Britain's rulers felt was a dangerous unleashing of unrestrained passion on the continent.

BBC: The end of the stiff upper lip?

In reaction to this observation, Schwaber created Scrum, a method of managing the communication in a complex software development project and removing distractions that could push a project off course.

FORBES: Eight Steps For Addressing the IT Management Crisis