see if you want to tell the story like this

first lay out background the question is difficult. There is no expertise in your group. Then you consulted people with expertise from other part of the department or company. You organized a discussion and finally got a consensus from these experts that the question should be addressed in such and such way. You are showing your leadership skill, which is not doing everyting yourself, but organizing and managing other people to achieve the optimal results. You will be appreciated more.