Are you about to make a BIG mistake?   Research Shows You May Have Already Done It ...  In a recent Quartz at Work article, Corinne Purtill discusses some interesting research that follows up the premises first promoted by Laurence J. Peter, in his 1969 business book parody The Peter Principle, (Why Things Always Go Wrong).   Peter took aim at an “ever-present, pestiferous nuisance” found in industries of all sorts: managerial incompetence. The explanation for it, Peter wrote, was his titular principle—that any employee in a hierarchy will rise to the level of his or her own incompetence. (“This Means You!” the book noted cheerily in a subhead.)   Organizations, Peter and...