From Tim Sanders: Speaking to 300 HR executives about their Net Worth, I had them start out by repeating after me: "I am not a cost center!" This was an important exercise, because too often we look at Human Resources as a staff function, like legal or corp communications. We treat sales like Rock Stars (because they bring in money). The marketing department has fat budgets (because they create demand for sales). Then, the product group is revered (because they bring new offerings to the table). This mentality needs to change. HR is the engine of growth for any company and here's why.