Appliances India Ltd is engaged in manufacturing and distribution of home appliances since 1987. It has a good name in the market as the company is producing good quality appliances. It has separate departments for manufacturing, finance, sales, maintenance services and technical services to achieve specialisation. Since the areas of operation of the company have increased and customers have become more demanding, the company decided to modify the existing principle of management to meet the changing requirements of the environment. State the general principle of management which the company wants to modify to meet the changing requirements.