The effectiveness of a project team is most likely to be enhanced when the team members are collectively responsible for reaching the team's goals. Shared responsibility fosters collaboration, accountability, and commitment to the team’s objectives.

Shared Responsibility:When team members feel collectively responsible, they are more likely to collaborate, share knowledge, and support each other in achieving the team's goals.

Accountability:Collective responsibility ensures that all members are accountable for the team’s success, which can enhance motivation and engagement.

Team Cohesion:This approach promotes a sense of ownership and belonging among team members, leading to higher levels of trust, communication, and teamwork.

References:

Katzenbach, J.R., & Smith, D.K. (1993).The Wisdom of Teams: Creating the High-Performance Organization. Harvard Business Review Press.

Hackman, J.R. (2002). Leading Teams: Setting the Stage for Great Performances. Harvard Business Review Press.