 8.16. It is essential that the child’s social worker, the agency adviser to the adoption panel and the local authority’s legal advisers, work closely together to ensure that each is kept aware of the progress of the case (see chapter 2). Each team should be prepared to act quickly. It will be the responsibility of the child’s social worker, with the assistance of the adoption team, to have prepared as much of the Practice Direction 14C report as possible even before the case goes to the agency’s decision-maker. This is so that the report can be finalised and lodged with the court promptly if the decision is made that the child should be placed for adoption and the placement order application is issued. Agencies may find it helpful to devise their own protocols to fit in with local arrangements. Revocation of placement orders Application by birth parents 8.17. A parent may apply, with the leave of the court, for revocation of a placement order provided the child is not at the time placed for adoption. The court may only give leave for an application if it is satisfied that there has been a change of circumstances since the order was made but, even if there has been a change of circumstances, the decision on whether to give leave will be a matter for the exercise of the court’s discretion. In the case of Coventry City Council v PG [2011] EWCA Civ. 729, the Court of Appeal held that a child is not “placed” for adoption until he or she begins to live with the prospective adopters or, if he or she is already living with them in their capacity as foster carers, when the adoption agency formally allows him or her to continue to live with them in their fresh 132 capacity as prospective adopters. While an application for revocation of a placement order is pending, the local aut