It's not always the "big bang" scenario that causes the problem

Business Continuity Management: An Overview

Strategy

Findings from the BIA and RA should be combined to identify those areas where the initial business continuity planning must be concentrated. Having identified those areas where the organisation is most at risk, decisions can be made about the need for corrective actions to be taken to remove, or reduce, the risks that may have been identified in the Risk Assessment.

The strategy should consider internal and external dependencies and will be the result of a review of the feasibility, potential effectiveness and costs of each corrective action option that may be identified during review discussions. These will vary in cost and resource effort required.