Case #002 The Case of the Hidden Stockpile
Based on patterns observed across real organisations
On a quiet Tuesday, in the procurement team of a local authority, the detective is taken on a tour.
The stockroom is enormous.
Shelves groan under the weight of stationery ordered “because it was cheaper in bulk.” A pallet of branded materials from a campaign that ended two years ago sits untouched in a corner. Three unopened laptops are still in their boxes. A folder of printed policy documents lies on a shelf, even though the policy was updated months ago.
What you are seeing here is Inventory Waste, one of the 8 wastes in Lean (TIMWOODS), where excess materials, information, or work-in-progress build up beyond what is actually needed.
If you’re new to the 8 wastes, this case links back to the bigger picture explored in our series introduction blog post here.
The Scene: When “Just in Case” Takes Over
Most organisations take comfort in having plenty “on hand.” A full stockroom feels safe. A bulging shared drive feels thorough. A long queue of work-in-progress feels like proof that the team is busy and important.
But there is a tipping point where “being prepared” becomes “being overloaded.” The more excess you carry, whether it is physical stock, digital information, or half-finished tasks, the harder it becomes to see what actually matters right now.
In our local authority, nobody is intentionally wasting money or space. Orders were placed to avoid shortages. Materials were printed for campaigns that once mattered. Devices were bought for projects that sounded urgent at the time.
Clues: Where to Look for Inventory Waste
Inventory waste is any build-up of materials, information, or work-in-progress beyond what is needed in the short term. It is not just boxes on shelves; it is anything that sits, accumulates, and quietly clogs up your system.
You are likely to see it in places like these:
- Stockrooms overflowing with stationery, consumables, or equipment ordered in bulk and rarely used.
- Outdated printed materials – policies, forms, guides, marketing leaflets, still taking up space even though newer versions exist.
- Queues of work sitting between stages in a process, waiting to be picked up “when someone gets time.”
- Shared inboxes, drives, or folders where emails, reports, and data are collected but never actually acted upon.
- Spare capacity, licences, or resources maintained “just in case” but almost never used in practice.
Anywhere you find “more than we need, for longer than we need it,” inventory waste is likely to be present.
Interrogation Questions: How to Spot It in Your Process
To uncover inventory waste in your own organisation, you do not need a complex system, you need curiosity and a willingness to look behind the scenes.
Start with questions like:
- Do we know what we actually have in stock, physically and digitally, at any given moment?
- When was the last time we audited what is sitting in queues, inboxes, shared drives, or storage rooms?
- Are we ordering or producing things based on real demand, or simply repeating what we have always done?
These questions shift the focus from “Do we have enough?” to “Do we have the right things, in the right amount, at the right time?”
The Verdict: What’s Really Going On
A full stockroom and a long backlog often come from good intentions: people trying to stay prepared, avoid delays, and make sure nothing gets missed. The real issue isn’t careless individuals, but processes that quietly encourage over-ordering, over-keeping, and over-preparing, without regularly checking what’s still needed.
So as we close the file on Case #002 The Case of the Hidden Stockpile, the trail doesn’t lead to a culprit at a desk, it leads to the process map on the wall.
That’s where the next case begins: Case #003 The Case of the Extra Steps, where we follow the path work takes and ask, “How many stages in this story are only here because the process hasn’t changed, even though everything around it has?”