Final answer:
A major and comprehensive redirection of a company is known as a strategic change, involving changes in goals, operations, or structures to meet new challenges or opportunities.
Step-by-step explanation:
A major and comprehensive redirection of a company is called a strategic change. This kind of change involves altering the overall goals, operations, culture, or structures of a business to meet new challenges or to take advantage of new opportunities. It's generally a top-down approach that can include changes in leadership, corporate philosophy, or business models, and often requires significant alteration of the organization's resources or practices. For example, a company may undergo a strategic change by shifting from a brick-and-mortar retail model to an e-commerce focused strategy, significantly revising its product lineup, or entering new markets and territories.