17.2.1 The Contract should not allow the Contractor to assign, novate or transfer its rights under the Contract, except as part of its Senior Lenders' security package. If a replacement Contractor is appointed by the Senior Lenders in accordance with their rights under the Direct Agreement (see Section 31 (Direct Agreement and Senior Lenders)), the Contract should allow for the original Contractor's rights and obligations to be transferred. Senior Lenders may also, in accordance with security rights which they may take over the shares in the Contractor, transfer these shares as allowed by Section 18.4 (Transfer of Interest : Flexibility and Restrictions).