Last year she closed the company's biggest deal ever -- the $6.4 billion acquisition of Affiliated Computer Services, which helped increase profits 25%. The ACS deal, once ballyhooed by investors, has been the crux of Burns' strategy to grow the services side of the business, now half of Xerox's revenue.
Boardroom battles and power plays shaped this year's U.S. list, which boasts eight new faces and -- surprise! -- a new No. 1.
