Managers view training as an expense because they view employees as a commodity, not an asset. As a matter of fact, most workers catch on so quickly, they're soon showing the new employees what to do. Mgt. wants the job done right. They insitiute the rules, regulations and procedures. Each time one employee teaches the next, more is lost in the translation.
Mistakes pass down the line.
One person should be responsible for teaching everyone the same skill. The aim of leadership should be to help people and machines and gadgets to do a better job. As I use the term here, the job of a leader is to accomplish transformation of his organization. First, he has a theory, a vision of his organization as it would be if transformed. He understands why the transformation would bring gains to his organization and to all the people that his organization deals with.