Why has T-Mobile's postpaid phone churn rate increased by 0.5% in the Midwest region during the past 60 days?

Introduction

T-Mobile's postpaid phone churn rate increase of 0.5% in the Midwest region over the past 60 days is a concerning trend that requires immediate attention. To address this issue, I'll employ a systematic approach to identify, validate, and resolve the root cause while considering both short-term fixes and long-term strategic implications.

Step 1

Clarifying Questions (3 minutes)

• Looking at the timing, I'm thinking there might be a seasonal factor. Has this 0.5% increase been observed in previous years during the same period?

Why it matters: Helps distinguish between cyclical patterns and unique issues. Expected answer: No, this is an unusual increase for this time of year. Impact on approach: If seasonal, we'd focus on mitigating annual churn; if not, we'd investigate recent changes.

• Considering the regional specificity, I'm curious about any localized events. Have there been any significant economic changes or competitor actions specific to the Midwest in the last 60 days?

Why it matters: Identifies external factors that could be driving the churn increase. Expected answer: A major competitor launched an aggressive promotion in the region. Impact on approach: Would shift focus to competitive analysis and retention strategies.

• Given the metric specificity, I'm wondering about data integrity. Has there been any change in how we measure or report postpaid phone churn in the last 60 days?

Why it matters: Ensures we're addressing a real issue, not a reporting anomaly. Expected answer: No changes in measurement or reporting methods. Impact on approach: Confirms focus on actual churn drivers rather than data discrepancies.

• Thinking about internal factors, have we implemented any significant product, pricing, or policy changes in the Midwest region recently?

Why it matters: Identifies potential internal triggers for increased churn. Expected answer: A new billing system was rolled out in the region 45 days ago. Impact on approach: Would prioritize investigation of billing-related issues and customer communication.