Quotes by Russell Ackoff
The systems approach to problems focuses on systems taken as a whole, not on their parts taken separately. Such an approach is concerned with total-system performance even when a change in only one or a few of its parts is contemplated because there are some properties of systems that can only be treated adequately from a holistic point of view. These properties derive from the relationship between parts of systems: how the parts interact and fit together
We have also come to realize that no problem ever exists in complete isolation. Every problem interacts with every other problem and is therefore part of a set of interrelated problems, a system of problems. Furthermore, solutions to most problems produce other problems; for example, buying a car may solve a transportation problem but it may also create a need for a garage, a financial problem, a maintenance problem, and conflict among family members for its use.
Managers are not confronted with problems that are independent of each other, but with dynamic situations that consist of complex systems of changing problems that interact with each other. I call such situations messes. Problems are extracted from messes by analysis. Managers do not solve problems, they manage messes.
Most corporate mission statements are worthless. They consist largely of pious platitudes such as: "We will hold ourselves to the highest standards of professionalism and ethical behavior." They often formulate necessities as objectives; for example, "to achieve sufficient profit." This is like a person saying his mission is to breathe sufficiently.
the performance of the whole is never the sum of the performance of the parts taken separately, but it's the product of their interactions.