Organisations are technical instruments; designed as means to definite goals... they are expendable. Institutions... may be partly engineered, but they have also a natural dimension. They are the products of interaction and adaptation; they become the receptacles of group idealism; they are less readily expendable.

Philip Selznick, quoted in Charles Perrow (1960, p.4), as cited in: Owen A. Jones. The Sources of Goal Incongruence in a Public Service Network. 2013. p. 35-36