We explore the application of contract theory, particularly agency theory and incomplete contract theory, to outsourcing scenarios, with a specific focus on the implications of advanced AI agents and open communication protocols. The first discussion lays the theoretical groundwork, discussing the trade-offs between outcome-based and process-based contracts, the challenges of incentive misalignment and moral hazard, the difficulties of creating complete contracts, and the limitations of overly rigid process controls, concluding that a balanced and adaptive approach is crucial, especially with AI. The second discussion examines how new agent-to-agent communication protocols like A2A and MCP shift the focus towards interface conformance and outcomes, while introducing novel incentive problems in multi-agent systems, necessitating faster contract adaptation, and highlighting the importance of balancing innovation with control through a two-layered contract combining interface SLAs and outcome sharing, alongside addressing security, trust, and liability in this evolving landscape. Together, they suggest that while new technologies offer enhanced observability, fundamental contracting dilemmas persist and require a hybrid approach of clear specifications and flexible governance to effectively manage outsourced AI agents.