Wednesday, Al Gore announced that he was shaking up his campaign, moving it to Nashville, getting back in touch with the people, and challenging Bill Bradley to a series of debates. The shake-up excited the press corps but has failed to impress investors. Gore's stock, which had peaked at 68 cents on Monday, fell from 66 on Wednesday to 64 on Thursday. By Friday morning, he had slid to 62.5 cents. One big reason may be the latest fund-raising reports, which show Bradley outpacing Gore. Iowa market investors, like Wall Street investors, pay attention to the bottom line.