USA Today, the nation's second largest newspaper, is making the most dramatic overhaul of its staff in its 28-year history in an effort deliver stories more quickly to mobile devices and produce more coverage likely to sell advertising.The makeover outlined Thursday will result in about 130 layoffs this fall, USA Today Publisher Dave Hunke told The Associated Press. That translates into a 9 percent reduction in USA Today's work force of 1,500 employees. Hunke didn't specify which departments would be hardest hit.