I really like the Lencioni books, they are generally short and to the point, they also have great insights in them. I was sceptical at first when I saw that the listening time ( I consume a lot of audio books) was only 3 hrs 42 mins, I still bought it and I was really happy I did.

In this book he talks about a set of values that each team must have to be successful, these values are built upon each other to form a pyramid

Trust

Everything must be built upon trust, it is the most important part of a team. Building trust takes time and each individual in the team must be willing to be vulnerable with each other. Only then will teams establish trust that allows them to engage in product and constructive conflict.

Conflict

Healthy conflict is a natural part of collaboration, and it leads to better decision-making. Productive conflict will show the following signs:

• Focuses on ideas, not personalities.
• Includes respectful communication
• Constructive criticism
• Outcome-focused

Healthy and productive conflict can only exist once vulnerability trust is established.

Commitment

When team members are not able to engage in healthy conflict, they may avoid important discussions or withhold their opinions, which can prevent the team from making informed decisions. To overcome this fear of conflict, team members must be willing to engage in open and honest communication, even when it is uncomfortable (Trust/Conflict).

Accountability

Holding a peer, superior, or direct report accountable might be one of the most challenging tasks within Lencioni’s model. After all, it requires telling someone they aren’t doing something, which can create an awkward encounter. To promote accountability, team members must be willing to hold themselves and each other accountable for meeting their commitments

Results focused

Focusing on group results is the final piece of this model of teamwork. To get to this point, teams must learn to trust, engage in conflict, commit to each other, and hold each other accountable. Reaching the top of the pyramid is no easy task, but the view is worth it