Which of the following is NOT a method for enhancing planning skills?

Avoiding discussions with fellow leaders is indeed not a method for enhancing planning skills. Engaging in discussions with peers and other leaders is crucial for developing and refining planning capabilities. These interactions provide opportunities to exchange ideas, gain different perspectives, and learn from one another's experiences, which can lead to improved decision-making and planning processes.

In contrast, the other methods listed all contribute positively to enhancing planning skills. Studying doctrine and tactics from various sources allows leaders to build a solid foundation of knowledge, exposing them to best practices and innovative strategies. Participating in debriefs after missions offers insights into what worked well and what could be improved, facilitating the development of future plans based on real-world experiences. Seeking feedback on strategic decisions encourages reflection and self-improvement, allowing leaders to adjust their approaches based on constructive criticism.

By avoiding the important discussions that can arise from collaboration and exchange of ideas, one misses out on valuable learning opportunities that are essential for effective planning.