Which of the following tools is NOT typically used to optimize contract performance?

The reasoning behind identifying fitness assessments as the tool not typically used to optimize contract performance lies in the nature and focus of the tools listed. Financial reporting at the contract level provides insights into the economic aspects of the contract, helping to track financial performance and compliance with financial metrics. Contract templates are standardized documents that can streamline the process of contract creation and ensure consistency, which can positively affect contract performance.

Negotiating-strategy planning briefs are crucial for aligning stakeholders on negotiation tactics, helping to secure better terms and conditions that ultimately enhance contract execution. These tools directly relate to managing the contractual relationship and performance.

In contrast, fitness assessments usually focus on physical conditions or capabilities, which do not pertain to the contractual performance aspect. Therefore, it stands apart from the other options that all have a direct connection to contract management and optimization.