In this episode, Rod and Lesley talk about something we all thought we knew - but were (mostly) wrong!  Many of us have heard about the 80/20 rule.  But, as Lesley will explain, it is really the 20/80 rule.  And the origin was based on the idea that 20 percent effort leads to 80 percent of the outcome.  This episode is the first of a mini series of two where your fearless hosts take on simple models that have lost their way and lead people to wrong ideas.  Next week... the 'Change Curve'... from adopters to resisters.