In an ideal world , Ferguson would retain Tévez 's services after his two-year lease arrangement expires on June 30 , but the United manager agrees with David Gill , the chief executive , that a permanent transfer has been rendered almost impossible first by his uniquely complicated situation -- with a £ 22 million transfer fee due to the companies that own his " economic rights " in addition to his wages and the £ 10 million lease fee that has already been paid -- and second by his difficulties in accepting the squad rotation system .