Team Effectiveness Exercise: Structured Peer Feedback

Definition

The Team Effectiveness Exercise is a structured peer feedback mechanism in which every team member provides written input to every other team member on two dimensions: (1) their single most important behavioral quality that contributes to team strength (their strength), and (2) their single most important behavioral quality that detracts from team strength (their weakness or problematic behavior). The exercise unfolds in real-time during a team meeting: feedback is delivered aloud in front of the whole group, beginning with strengths, then weaknesses, with the recipient having a chance to ask clarifying questions after each round. After all team members have received feedback, each person summarizes the 1–2 key takeaways they will work on, in writing, and shares them with the leader.

In the Book

Lencioni presents the Team Effectiveness Exercise (pp. 139–140) as the primary tool for "Embracing Accountability." The seven-step process is: (1) have all team members write answers to two questions about each peer: what is their single most important behavioral strength, and what is their single most important behavioral weakness; (2) begin with the team leader and have all members read their positive comments aloud until everyone has spoken; (3) ask the leader to respond (surprises, clarifications); (4) continuing with the leader, have all members read their negative comments aloud; (5) repeat steps 2–4 for every team member; (6) have each person summarize their 1–2 key takeaways in writing and send them to the leader; (7) at the next team off-site, have members report on progress made and solicit peer observations. The exercise is designed to be uncomfortable — it requires courage to say hard things in a room, and courage to hear hard things about oneself. The writing step ensures commitment and prevents members from sugarcoating their input based on what others have said.

Why It Matters

The Team Effectiveness Exercise models the behavior that peer-to-peer accountability requires: the willingness to name problems directly and in person, without filters. Because it happens in front of the whole team, it normalizes both giving and receiving critical feedback. It also prevents the "feedback washing" that happens in private 1-on-1 conversations, where criticism is softened and excuses are made. In a room with peers, the message is clear: "Your behavior matters to us, and we are telling you directly." The focus on a single strength and single weakness makes the feedback manageable — not a laundry list of complaints, but a clear signal about what the person should amplify and what they should change. For the team, the exercise creates a feedback culture where behavioral problems surface before they become team crises. A person learns that their habit of interrupting teammates is noticed and matters, or that their tendency to withdraw during conflict is costing the team. This is the peer-to-peer accountability that Lencioni says is more powerful than boss-driven accountability, because the motivation is not fear of punishment but fear of letting down colleagues.