Team-building activities are most effective when implemented after the team members have been selected.
This allows the team to start forming relationships and understanding each other's strengths and weaknesses from the outset. It sets the stage for effective communication, trust-building, and collaboration which are crucial for the team's success. Implementing team-building activities at this early stage can also help in identifying and addressing any potential conflicts before they escalate1.
References: 1: ASQ - Manager of Quality/Organizational Excellence Certification CMQ/OE.