Final answer:
The optimal approach for a Product Manager when teams lack technical knowledge to implement a top feature is to provide training to the teams or consider other options such as assigning it to another team with the necessary skills.
Step-by-step explanation:
When a Product Manager is informed that a team lacks the technical knowledge to implement a feature during PI Planning, the preferred course of action is not to simply remove or ignore the feature. Since Agile and SAFe (Scaled Agile Framework) methodologies emphasize continuous learning and improvement, the appropriate response would be to provide training for the team on the necessary technical skills. This can help in building the team's competency and ensure they can handle similar challenges in the future. If the feature is of high priority and training cannot be done in a timely manner, the Product Manager could also consider temporarily assigning the feature to another team with the right expertise, or seeking external support, while still planning for the necessary training to upskill the original team. Ultimately, the decision should align with the goals of maintaining a sustainable pace for teams, delivering value continuously, and fostering a culture of learning and empowerment within the organization.