A quote from The Soul of C. S. Lewis:
Unbeknownst to many who engage in such ventures [that promise the greatest results with the least amount of expenditure], utilitarianism and mechanism subtly but strongly shift the value of resources, plans, and even people, boiling everything down to quantifiable usefulness. Under the strain of strategy, ministry vision once sharpened to further God’s work becomes myopic; anyone and anything without visible potential for achieving the stated goals is not merely valueless but not even noticed. With no obvious utility, God-given gifts and potential breakthroughs may never be employed because they are never seen in the first place.
The church cannot fall into the same pattern of failure as those who do not know God; our vision cannot be limited to what directly and obviously serves our purposes. Surely the most strategic way to join in God’s work is by cultivating his vision, so that we are able to see and value all gifts, even without being able to map out their future applications in detail… (p.268)