OPS Playbook · Issue 02

The 15-minute root cause sprint: Pareto + 5 Whys

Lior Zaken February 3, 2026 Operational Excellence & Continuous Improvement
The 15-minute root cause sprint: Pareto plus 5 Whys

Chaos rarely comes from 50 problems. It usually comes from 3 problems that show up 50 different ways.

If your week is full of urgent pings, late tasks, rework, and "can you jump on this," you do not need more hustle. You need a fast way to pick the right problem and fix the cause, not the symptom. This issue is a simple routine you can run in 15 minutes with any team, in any industry.

The play

Examples of inputs: late shipments, defects or rework, customer tickets, vendor misses, approval delays, project handoff delays.

Step 1 (5 minutes): Run a mini Pareto

Pareto is a quick way to decide what to fix first. In many systems, a small number of causes drive most of the problems. So instead of spreading effort across 10 issues, you identify the biggest driver and start there.

How to do it:

Mini Pareto process: pick time window, list problem types, count occurrences, sort highest to lowest, pick top 1 problem type
The mini Pareto process, five quick moves.

Example:

Start with vendor delays.

Step 2 (7 minutes): Do 5 Whys on the top problem

Pick the top category from your Pareto and ask "Why?" until you reach a cause you can control.

Rules that make this work:

Five Whys chain: why did it happen, why did that happen, repeated five times
Keep asking why until you reach a cause you can control.

Mini example: approval delays

  1. Why are approvals late? Requests sit unassigned.
  2. Why unassigned? No single intake owner.
  3. Why no intake owner? Requests come through email, chat, and hallway asks.
  4. Why multiple channels? No standard intake path.
  5. Why no standard? Nobody defined the rule or built a simple intake form.
Root cause

No standard intake process and no single owner.

Step 3 (3 minutes): Create one 48-hour countermeasure

Do not create a big project. Create one change you can implement in 48 hours.

Good countermeasures look like:

Bad countermeasures look like: "Be more careful." "Remind the team." "Try harder."

Countermeasure example for approval delays: one intake form, one daily 10-minute triage owner, and an auto confirmation message with a clear SLA.

Copy and paste template

Use this every week.

Root cause sprint

Common traps that make this fail

Try this this week

Run this once with your team and you will feel the difference immediately.

If you try it, comment "ROOT" and share your top problem type. I'll reply with 3 practical countermeasure ideas you can implement fast.

Lior Zaken
Operational Excellence & Continuous Improvement

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