What's measured improves - Peter Drucker

there are only three explanations for an “indispensable man”: He is actually incompetent and can only survive if carefully shielded from demands; his strength is misused to bolster a weak superior who cannot stand on his own two feet; or his strength is misused to delay tackling a serious problem if not to conceal its existence.

It is, above all, fruitless and a waste of time to worry about what is acceptable and what one had better not say so as not to evoke resistance. The things one worries about never happen. And objections and difficulties no one thought about suddenly turn out to be almost insurmountable obstacles. One gains nothing, in other words, by starting out with the question “What is acceptable?” And in the process of answering it, one loses any chance to come up with an effective, let alone with the right, answer.

There is nothing so useless as doing efficiently that which should not be done at all.