In 'What's Ahead on Wall Street' for Friday April 1, it's going to be a busy morning with several economic reports on our radar. Of course, the big one everyone will be watching is the March jobs report. Economists are expecting the economy to have added 210,000 new jobs in March. Then, throughout the day, we'll be getting motor vehicle sales figures from automakers for the month of March, followed by the PMI Manufacturing index. TheStreet's U-Jin Lee reports on Wall Street.