'The companies may not be perfect but the guys who are running them now are the only ones with the experience and the in-depth knowledge and understanding of how the car business really works. They're by far the best shot we have for success. I say give them their marching orders and then let them march. They're the right people to get the job done,' he said. House Speaker Nancy Pelosi, D-Calif., hasn't backed a call for firing the CEOs, but she told NBC's 'Today' show they need to perform. 'Well, I think it's a test for their CEOs. The next couple of weeks will test (as to) whether these are the people who can lead these auto companies into the future,' Pelosi said. General Motors Corp. Ford Motor Co. and Chrysler LLC have sought $34 billion in loans and lines of credit. Some in Congress have called for the CEOs, especially GM chairman and CEO Rick Wagoner, to resign in exchange for aid. GM's board of directors said it strongly backs Wagoner. Congress is expected to vote this week on a $15 billion emergency rescue package for automakers, which will include strict oversight including a car 'czar.' Iacocca, a former top executive at Ford as well, convinced Congress to issue $1.5 billion in loan guarantees for Chrysler in 1979. The loans were repaid with $350 million in interest in 1983.