Four orthopaedic surgeons in a busy hospital department have very different work habits.

Four orthopaedic surgeons in a busy hospital department have very different work habits. Each has their own team of medical technicians who are used to the surgeons' personal preferences and are very comfortable with their routines; they basically do the same things every day. This way of working has gone on for several years.

When a new administration manager suggested that they train all of the technicians to work with all the surgeons this led to significant resistance from all of the parties involved. The technicians were concerned that they would no longer be able to perform their usual daily tasks.

On the basis of the scenario what would be the main cause of their resistance?