As set out above the development of strong knowledge management systems is core aspect of effective contract management. A key basic principle the Contract Manager should keep in mind is that the knowledge within the team is not over concentrated in one key individual. Explicit knowledge can be shared though documentation but by definition tacit knowledge can never be fully replicated in a document so over concentration of this knowledge in one individual makes the Authority vulnerable. The Contract Manager should therefore make sure that tacit knowledge is widely shared within the team so that the loss of one individual is not a major issue. In addition the techniques set out below can help in managing this risk.