The objective of most training is to deliver change and development at low cost and input from the business and its people. Whilst this is a desirable position it does mean that the quality of the training and its effectiveness can tend to be hi-jacked by the need for 'cost-effectiveness'.
The view is that a change in behaviour will be achieved by a one or two-day workshop that will deliver clear and key learning points which will then migrate across into the workplace environment.
Maybe some training needs a more medium-to-longer-term approach. In other words maybe a some training needs greater investment to deliver long-term benefits? Thus the diagram shows the simple or naive approach to training and development initiatives within some businesses.