much more cost effective isn't it if things to be done once rather than have to do reading them two or three times and generally the reason that things are repeated a number of times is that perhaps people are not really quite sure or not that that are  systems, yet productivity the better trained people are people who can do things, get it right the first time and they can do more work can't they than somebody else you are not having to pick it up as the manager responsible and put mistakes right.