A business capability is a functional unit within a business that is comprised of four layers: policies, people, processes, and technologies. Policies provide governance. People provide judgment, expertise, and exception handling. Processes provide repeatability. Technologies remove people from the processes and provide automation.
The four layers comprise a business capability stack (BCStack). You can model a corporate bureaucracy as a system of BCStacks. BCStack exchange information and resrouces with other BCStacks (Engineer interacts with Finance, IT interacts with Customer Support, etc.). BCStacks can create, change, and delete other BCStacks. BCStacks can contain sub BCStacks. One person with a laptop is a BCStack.
BCStacks are completely hackable. You can reverse engineer a BCStack's policies and help others reinterpret them in your favor. You can find a person who has the authority to make an exception to a BCStack policy. You can hack the BCStack's people layer by influencing them with your ideas. You can fuzz test a BCStack's process until it breaks and then recommend your fix. You can hack a BCStack's technology layer by demonstrating its vulnerabilities. Most importantly, you can create your own BCStack.