Anyone who has read Blink by Malcolm Gladwell knows that what we think we know about how good decisions are made is mostly wrong. For most of the past sixty or so years the 'scientific' method has been in vogue with accountants, CFO's, purchasing departments and strategic planners (and, you guessed it, HR). Want to make a good decsion? Reach for the slide rulers (my age is showing) and the spreadsheets. List the relevant criteria, find the option that meets the greatest numbers and pull the…