Final answer:
Adam and Danny's committee for organizing a "Magic: The Gathering" tournament is in the coalescence stage of group formation, where members establish rules and by-laws for group governance.
Step-by-step explanation:
In the scenario where Adam and Danny organize a tournament for the fantasy card game "Magic: The Gathering," and the organizing committee discusses rules and by-laws, they are in the coalescence stage of group formation. This stage involves members joining together to organize, publicize the issue, and raise awareness.
They may also establish the necessary rules and procedures that will define how the group functions. During this stage, general agreement on goals is transformed into specific agreements on rules, procedures, and responsibilities. This differs from the preliminary stage, where awareness of the issue arises, or the institutionalization stage, where the movement becomes a formal organization.