By: Verne Harnish “Growth Guy” Aug 1, 2013 1:00:00 PM ET Successful leaders know they need to balance the needs of employees, customers, and shareholders to build a thriving company. Many firms excel at tracking key performance indicators (KPIs) like profits, as well as customer feedback on a weekly or daily basis, but they fall flat when it comes to monitoring employees’ morale – and it shows. New research by Gallup found that 52% of American workers are not engaged in their work, w...