Sally Cameron thought she had done everything right. After studying French and Arabic at a tony liberal arts college, she knew that graduate school would help her career chances. But when she hit the job market, her Ivy League management degree didn’t seem to matter. The worst recession in decades had pushed the unemployment rate to nearly 10 percent and good jobs were scarce. Sally paid the rent by tending bar and filled her time with volunteer work. Meanwhile, experts and government officials warned that the days ahead would be grim.