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Lessons Learned

11 articles tagged Lessons Learned.

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Lessons Learned Jun 1, 2026 9 min

Two-Way Doors: Make Reversible Decisions Fast and Irreversible Ones Slow

Only 20 percent of executives say their organizations excel at decision making, and most report that much of the time they spend on it is used ineffectively. A large share of that waste comes from treating reversible decisions as if they were permanent. Amazon has a name for the...

Lessons Learned May 28, 2026 8 min

Chesterton's Fence: Do Not Remove What You Do Not Understand

Software maintenance accounts for 50 to 80 percent of a system's total lifecycle cost, according to decades of engineering research summarized in the peer-reviewed literature on maintenance economics. A large share of that money is spent touching things nobody currently understands....

Lessons Learned May 26, 2026 8 min

The Bus Factor: What Happens If Your Key Person Disappears

In a study of 133 popular open-source projects, 46 percent had a bus factor of one, meaning a single person held enough of the knowledge that the project would stall if they walked away, and 65 percent had a bus factor of two or fewer (Avelino, Passos, Hora and Valente, 2016). The bus...

Entrepreneurship Jan 23, 2026 6 min

When to Fire a Client

The clients who consume the most capacity rarely produce the most revenue. The math on who stays is straightforward. The conversation is harder.

Entrepreneurship Jan 7, 2026 5 min

What Client Retention Actually Measures

Retention is often described as a metric. It's actually a verdict — the aggregate judgment of clients who had options, and chose to stay.