To be a corporate executive in America is to achieve a universally recognized measure of personal and professional success. The high income, privilege, prestige, and authority enjoyed by most corporate executives all attest to "making it." That is why the advancement of racial and ethnic minorities into the executive suite is one of the key barometers of the nation's progress toward full equality of opportunity. But the quest for equal opportunity in corporate management has been difficult and frustrating. Black, Hispanic, and Asian men and women are rarely found among those who run or...