There are three levels of management hierarchy: strategic, managerial and operational. Part 1: Review at least 4 academically reviewed articles on each management hierarchy. Summary the articles in your own words. Part 2: Discuss how the three levels of management hierarchy: strategic, management, and operational relates to the mission of a business. Part 3: As an IT professional, how would you use information technology to improve the efficiency the three levels of management hierarchy? This discussion should be 300 words long with a minimum of 3 references. Along with this, please write responses to the 2 discussions in the attached document. Each response should be 150 words long.