The hardest feedback is usually delivered in the car, straight after the call.
"You talked for most of that call." Every rep has heard a line like that on a double visit. And almost every rep's first reflex is to defend.
In Thanks for the Feedback, Stone and Heen describe three triggers behind that reflex. I see all three in the field:
- "That is not true." The truth trigger. Before you argue, ask what he saw.
- "Who is he to say?" The relationship trigger. Separate the message from the messenger.
- "Am I a bad rep?" The identity trigger. One call is not who you are.
What I ask reps to do instead:
- Notice your reaction before you answer.
- Ask one question: "What would you have done differently?"
- Try it on the next call. Talk less. Ask one more question.
- Close the loop. Tell your manager what you changed and what happened.
The rep who closes the loop gets better feedback next time, and more trust.
“You do not have to agree with feedback to learn from it.”

Lesson 13 of 13 in Step 8: Habits and integrity, with the full guide and a checklist for this week.