It is easy, however, to exaggerate the power of the Cabinet. After all has been said, it is evident that they differ from the permanent officials only in not being permanent. Their tenure of office is made to depend upon the supposition that their functions are political rather than simply ministerial, independent rather than merely instrumental. They are made party representatives because of the fiction that they direct policy. In reality the First Comptroller of the Treasury has almost, if not quite, as much weight in directing departmental business as has the Secretary of the Treasury himself, and it would practically be quite as useful to have his office, which is in intention permanent, vacated by every change of administration as to have that rule with regard to the office of his official chief. The permanent organization, the clerical forces of the departments, have in the Secretaries a sort of _sliding top_; though it would probably be just as convenient in practice to have this lid permanent as to have it movable. That the Secretaries are not in fact the directors of the executive policy of the government, I have shown in pointing out the thorough-going supervision of even the details of administration which it is the disposition of the Standing Committees of Congress to exercise. In the actual control of affairs no one can do very much without gaining the ears of the Committees. The heads of the departments could, of course, act much more wisely in many matters than the Committees can, because they have an intimacy with the workings and the wants of those departments which no Committee can possibly possess. But Committees prefer to govern in the dark rather than not to govern at all, and the Secretaries, as a matter of fact, find themselves bound in all things larger than routine details by laws which have been made for them and which they have no legitimate means of modifying.