In The Five Dysfunctions of a Team: A Leadership Fable, Patrick Lencioni focuses on these troublemakers:

1. Absence of Trust: The fear of being vulnerable with team members prevents the building of trust within the team.

2. Fear of Conflict: The desire to preserve artificial harmony stifles the occurrence of productive, ideological conflict.

3. Lack of Commitment: The lack of clarity and/or the fear of being wrong prevent6s team members from king decisions in a timely and definitive way.

4. Avoidance of Accountability: The need to avoid interpersonal discomfort prevents team members from holding one another (or themselves) accountable for their behaviors.

5. Inattention to Results: The desire for individual credit erodes the focus on collective success.

For more information about the model or anything else relating to the five dysfunctions, please click here.

I also high recommend his most recently published book, The Ideal Team Player: How to Recognize and Cultivate the Three Essential Virtues as well as Team Genius: The New Science of High-Performing Organizations, co-authored by Rich Karlgaard and Michael S. Malone.