The critical moment in the story is when Alisa gets hurt and Teresa steps in to coach the team. Though Teresais the "unlikely heroine," how did Alisa also make the happy outcome of this story possible?

In the story "An Unlikely Heroine" by Elizabeth Kibler, Alisa also makes the happy outcome of the story possible by encouraging Teresa to stay on the team until the end of the season. Had Alisa not done that, Teresa would not have been able to step in to coach the team in the critical moment of the story.