Study Guide: Chapter 15 — A Manager's Time

Core Idea

Learning requires reflection time, which American management culture treats as unproductive. Even given ample time in controlled experiments, managers default to switching strategies rapidly without ever examining why. Senior managers should reserve their time for divergent (complex, dilemma-like) problems, not convergent (routine) ones.

Key Terms

Reflection-in-action (Schön) · chain gang model of management · convergent vs. divergent problems (recap)

Case Summary

Japanese vs. American norms on interrupting someone sitting quietly. MIT microworld experiments: managers cycle through 3-6 strategies in a simulated 4-year business without ever articulating why one failed. Bill O'Brien's no-short-meetings rule and ~12-decisions-a-year target. Ed Simon's 25%-time commitment to "organizational architect" skills at Herman Miller.

Application Checklist

• [ ] Notice whether your calendar is full of convergent problems that belong at a lower level
• [ ] Before switching strategy on a stalled initiative, articulate explicitly why the current one is failing
• [ ] Protect real reflection time rather than treating visible busyness as the proxy for productivity

Self-Test

1. What did the microworld experiments reveal about managers' reflection habits even with ample time available?
2. Why does O'Brien treat a "big year" as one with about twelve decisions?
3. How does the convergent/divergent distinction help decide what belongs on a senior manager's calendar?