Which factor is NOT typically considered in the assessment of past performance?

The assessment of past performance focuses on a contractor's ability to fulfill contract requirements effectively, emphasizing aspects directly related to execution and delivery. Factors such as the quality of work completed, timeliness of delivery, and customer satisfaction feedback are all critical metrics that provide insight into how well a contractor has performed on previous projects.

Quality of work completed evaluates whether the contractor met the specifications and standards set forth in the contract. Timeliness of delivery assesses whether the contractor completed the work on schedule, which is crucial for project management and operational planning. Customer satisfaction feedback serves as a direct measure of how a contractor's work meets the expectations and needs of the clients they served, indicating their capability and reliability.

In contrast, a contractor's marketing strategies are not relevant to past performance assessments. Marketing strategies pertain more to how a contractor promotes their services and business development, rather than their actual performance on contracts they have previously executed. Therefore, it does not contribute to understanding their past effectiveness or reliability in delivering contracted work, making it the correct answer for the factor that is NOT typically considered in the assessment of past performance.