McDonald's may not even be the most noteworthy corporate mover in Illinois. Machinery giant Caterpillar said this year that it was moving its headquarters from Peoria to Deerfield, which is closer to Chicago. It said it would keep about 12,000 manufacturing, engineering and research jobs in its original hometown. But top-paying office jobs — the type that Caterpillar's higher-ups enjoy — are being lost, and the company is canceling plans for a 3,200-person headquarters aimed at revitalizing Peoria's downtown.