Why not continue with "business as usual"?
Because the more traditional risk management approach is not enough any longer. The world looks differently today that it did just 10-15 years ago. The strategic and operational landscape is more uncertain and more complex then ever before. Globalization, rapid technological development, complex systems, "just-in-time-delivery", and slimmed organizations have created increased dependencies between actors as well as increased vulnerabilities to various forms of crises, major disruptions and the cascading consequences.
Today, businesses and organizations are interdependent and interconnected in a way they weren't before. A disruption in one system quickly creates ripple effects and consequences in other systems. The rapid technological development in combination with various social platforms have effectively pushed accountability to the forefront and gone are those days when we could "say one thing and do another thing". It also demands faster management on all levels. A major disruption futher down in the organization can quickly become a strategic issue and it therefore requires an understanding and a capability to to react at all levels when a major disruption occurs.
Cause and effect are difficult to identify and understand
It is increasingly more difficult to see and understand the cause and effect in today´s complex and interconnected systems (both technological and human systems). Threats and risks are becomig more difficult to identify and understand. If we cannot identify or understand the threats and risks, it becomes difficult to work with a more traditional risk management approach. Resilience is a concept and a practice that takes these issues into account.