New management may bring to a business new and modern ideas, fresh enthusiasm, and additional financial resources, and is not bound by the traditional practices of the old management. Nor does it always make much difference what the business is. A store that has been limping along may suddenly leap ahead under new management. A bank that has been only just getting by has made rapid progress when new management took hold. This may be observed in every line of human endeavor, in every city, town, and village. Fortunately or unfortunately, depending on the point of view, the successful generals are invariably those who are the best managers.

On the other hand, before one can undertake intelligently the management or administration of activity, even though the principles of management are the same everywhere. The difference between knowing something about the activity to be managed and not knowing something about it is difference between the concrete and the abstract.