Firms come out streamlined; still slow to hire
                                
                                
                                    (Newser) -
                                    For some of America's biggest companies, the recession amounted to growing pains: They're now "leaner, meaner, and hungrier," says one economist. Indeed, sales, profits, and employment among S&P 500 companies last year beat figures from 2007—before the crisis began, the  Wall Street Journal  notes...