A Fortune 500 company is consolidating its regional office in Sacramento's central city. Although moving only two blocks, AECOM's choice to remain here and bring more workers to the city's core is cause for some celebration after many regional and divisional offices shrunk in the last two years, local business leaders said. "This is an indication that we're heading in the right direction," said Michael Ault, executive director of the Downtown Sacramento Partnership. AECOM, headquartered in Los Angeles, merged with the environmental, planning and design firm EDAW in 2006. AECOM added construction, engineering, architecture and high-level project management, as well as a global force of 4