Which process involves managers from all areas of an organization to achieve long-term goals?

The process that involves managers from all areas of an organization to achieve long-term goals is strategic management. This is because strategic management encompasses the development and execution of overarching plans that align the company's resources and capabilities with its mission and vision, aiming for sustained competitive advantage. It requires input and collaboration from various departments—such as finance, marketing, operations, and human resources—ensuring that the entire organization is working in concert toward defined long-term objectives.

In contrast, operational management focuses on the day-to-day operations and efficiency of specific processes, tactical management deals with the steps and actions taken to implement portions of a strategy, and project management is centered around planning, executing, and closing specific projects that aim to achieve particular objectives within defined constraints. While these other functions are essential, they primarily address more immediate needs rather than the longer-term, organization-wide perspective provided by strategic management.