1. Line departments are responsible for business results, while staff departments are responsible for professional standards, avoiding buck-passing.
2. Staff departments (such as IT, Legal) are centrally managed to reduce redundant costs and enhance professionalism.
3. Line departments quickly respond to the market, while staff departments provide compliance and resource assurance.
4. Suitable for mature businesses, but cross-department collaboration relies on high-level coordination, easily forming 'departmental silos'.