Many contracted-out public services are now being contracted back into the public sector. The author first reviews the conventional economic factors-imperfect contracting market-which can bring pernicious effects to contractingout. Second, the author proposes 9 noneconomic possibilities which may lead to contracting-back-in by looking into employment relationships, knowledge creation, isomorphism, opposition from unions and public officials, the loss of middle-level managers, political interference, the failure of balancing trust and control, corruption, and the loss of public values. Finally, the author concludes that a holistic understanding of contracting can hardly be developed unless one incorporates and balances economic and noneconomic views.