3.1 The Authority should collate all central agreements relating to the project in a contract management portfolio. The portfolio should set out how the Authority will fulfil its role in managing the contract and monitoring performance. These documents will provide information to the monitoring team on the processes that need to be followed to fulfil the Authority's obligations. Box 3.1 below suggests what should be included within the contract management portfolio. It may be that not all of these documents are necessary for every PFI project. However, contract managers should consider keeping together a portfolio of documents related to the agreement. They should be drafted by the contract manager and are procedural rather than legal documents. Given the long duration of most PFI contracts, change of personnel is inevitable. These documents will help to make sure that there is consistency in contract management, even when personnel change.