The goal of Management is to automate *Everything* you do (or think you do) SAP. For the God of Efficiency, that religion of the Econ folks - whose attenuated views of Real Life were allowed to expand and infect all: VisiCalc alone, may have doomed US to the tender mercies of the 100% mercantile mindlessness du jour. This is not a formula for human beings - but only for the velocity of money - a Pure Abstraction!
On one front, you're dead wrong. The goal of Management in this case is to realize a return on investment. If the project takes one year to complete with four trained people, don't hire someone who will take six months to learn the ropes. That's all.
On a grander plane, you're absolutely right. The goal of management is to automate everything you do. But interpreting this as Evil Intentions is a mistake--it is nothing more than meeting the current challenge, the challenge of adapting your company to constant, inevitable change. My job as an IT manager is to take the change of the week and do one of three things with it:
1. Reject it on provable grounds.
2. Package it into a process which a developer can manage.
3. Package it into a job which a non-developer can do.
This week, it's a new website for marketing. Next week, it's IP telephony. Then GPS. Then wireless. Then refactoring. Then DB optimization. Then--you're so far out that planning is meaningless. This is what (especially *middle*) management does: grease the wheels of corporate change. This is exponentially true in a "knowledge-based" industry (or business unit, or department).