Sometimes when companies have grown very large they restructure from a vertical

When there are a variety of product lines, geographic regions, or manufacturing processes that can be difficult to manage, managers find that they can streamline functions using a horizontal structure to make management easier. For example, they might structure the organization into divisions of employees who work on just one product line. Or they might divide the company into teams in which each team specializes in just one geographic region or works through just one manufacturing process. In essence, these divisions work like separate mini-companies.

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