When does the forming stage reset?

The forming stage in team development is a phase where team members come together, get to know each other, and establish initial relationships. This stage can reset when a new member joins the team, as their presence introduces new dynamics and can alter the established group norms and interactions. The team must then revisit this early stage, potentially going through the process of forming again as they adjust to the new member's role, personality, and contributions.

In contrast, achieving team goals typically signifies progression into later stages of team development rather than a reset. Conflicts can lead the team back to earlier phases, but not specifically the forming stage; they may require the team to navigate through stages like storming or norming instead. Similarly, changes in team leadership can influence the overall functionality and direction of the team but do not specifically coincide with a return to the forming stage unless it is accompanied by significant changes in team composition. Thus, the correct answer focuses on the clear impact a new member has in requiring the team to rebuild its initial connections and understanding.