Inventory as a Cancer

Underlying the Numbers — Issue #2: Inventory as a Cancer
by Kevin Goodwin | Scaling Business Architects

TL;DR: Inventory is anything a business has already paid for but has not yet converted into cash. In a product business, that may be unsold goods sitting in a warehouse. In a service business, it may be paid labor capacity that is underutilized, underpriced, or tied to stalled client work. Both can leave revenue looking healthy while liquidity steadily deteriorates. The financial statements may classify these resources differently, but the underlying problem is the same: working capital is trapped in assets or capacity that are converting too slowly. Solving it requires more than monitoring the numbers. It requires changing the operational decisions around purchasing, pricing, utilization, contracts, and conversion timing before the cash shortage forces the issue.

You've seen the version of this where the revenue looks fine and the cash doesn't. Client's not spending recklessly, not hiding anything — the numbers just don't connect the way they should. Revenue says one thing. The bank account says something else. And the owner is sitting across from you trying to figure out which one is lying.

It's usually inventory. Not always the warehouse kind. Sometimes it's labor, sometimes it's capacity that's going unbilled, but the mechanics are the same — the business bought something, expected to convert it into revenue on a certain timeline, and that timeline slipped. Meanwhile the meter's still running. Storage, payroll, opportunity cost that never hits the P&L but dominates every cash conversation you have with them.

The part that makes it dangerous is that it doesn't look dangerous. It just looks slow.

The Product Version

You probably have a client like this right now. Call her Sarah. Consumer goods, just north of two million in revenue. Warehouse is full — and not because she lost control of purchasing. She made reasonable buys. Seasonal inventory at volume to protect margin. Components for a line extension she's been building toward. Finished goods from a retail partner that didn't move what they said they'd move.

All of it made sense when she bought it. None of it has turned into cash yet.

And you can see it before she can, because you're watching the conversion cycle. What used to be forty-five days is creeping toward ninety. It happened slowly — extra week here, a retailer quietly moving to net-60 — and she didn't feel the drift because revenue kept coming in. But you're watching the current ratio tighten. Receivables keep stretching. The story is right there.

Here's the thing about inventory sitting in a warehouse: the balance sheet calls it an asset. And technically it is. But every day it sits there unconverted, it's eating working capital. Not just storage costs — that's the part people see. The part they don't see is the cash that's no longer available for payroll, for the next PO that actually matches demand, for marketing that could move the stuff that's actually selling. She's funding last quarter's optimism with this quarter's operating budget. The balance sheet won't call it that, but that's what's happening.

You've probably flagged some version of this for her already. Maybe she heard you. Maybe she nodded and moved on to something that felt more urgent. But the numbers aren't going to get quieter about it.

The Service Version

Now think about someone like Celeste. HR Consulting Agency. No warehouse, no physical product. And when you look at her financials, you see the same cash gap — revenue up here, liquidity down here — but there's no inventory line item to point to, so it's harder to name.

But it's there. Her inventory is her team's capacity.

She's got seven full-time employees, three of them assigned to retainer clients. You've watched this movie before — one client has quietly reduced scope without adjusting the rate. Another one is stuck in an internal approval loop that leaves her team sitting idle between deliverables. The third account is fine, technically, but "fine" at a rate that was set eighteen months ago before she gave two of those people raises.

So, she's carrying labor she can't fully convert. The gap between what she's paying her team and what those hours produce in revenue has been drifting for months, and no one renegotiated anything because the contracts are still active and the revenue is still landing.

She's doing solid top-line numbers. She also has about three weeks of runway. You know those two things shouldn't be true at the same time. But they are, and the reason is the same as Sarah's — the business is holding something it's already paid for that isn't converting to cash at the pace the income statement implies.

If you're looking for it, you can see the utilization gap. That's the service-business version of inventory turns. But nobody calls it that in her world, which is part of why it persists.

The Shared Signal

These are completely different businesses. One's got a warehouse problem, the other's got a calendar problem. But the cash pattern is identical — it's tighter than the revenue says it should be.

You've heard the owner's version. They know something's off. They can feel it. But their reports don't frame it as an inventory issue — in one case because the inventory is physical and the reports just call it an asset, and in the other because nobody thinks of billable capacity as inventory in the first place. Different language. Same math. And honestly, you might be the only person in their orbit who can see both sides of it clearly.

Why It Persists

You already know, because you've watched it happen more than once.

It's not that they're not paying attention. It's that addressing it costs something emotionally that feels bigger than waiting. Writing down finished goods feels like admitting a mistake. Renegotiating a retainer means a hard conversation with a client she likes. Restructuring the team — nobody wants to have that meeting. So, the inventory stays, and the cost of carrying it stays invisible, and next quarter the conversation sounds exactly the same.

And then there's the hope piece. You've heard it across the table. Demand might come back. The big client might expand scope in Q4. The seasonal push might clear the backlog. These aren't crazy thoughts — it's the same optimism that got the business off the ground. It just isn't serving them here. You know the difference between conviction and denial in a founder. Sounds identical in the room. It shows very differently in the cash flow.

The Reframe

Inventory isn't a storage problem. It isn't a staffing problem. It's a cash conversion problem. The question was never where do I put this or what do I do with these people. The question is how long it takes to become cash, and what is it costing the business while it waits.

Sarah's warehouse is full of Q4 product and Celeste's underutilized retainer team — same problem, different wrapper. Both are resources the business already paid for that haven't become liquid yet. Both are eating working capital that could be doing something else. And both look perfectly normal to anyone who's only watching the top line.

You're not only watching the top line. That's the point.

The owners who get ahead of this aren't the ones who grew fast enough to outrun it. They're the ones who had somebody name it before the cash position forced the conversation. Whether that's you — whether you're the one connecting the operational picture to the financial one — depends on whether anyone is working on the structure underneath the numbers. Not just the numbers themselves.

Underlying the Numbers is a series about the operational and structural conditions underneath the financial patterns you see in your SMB clients. Not theory. Not sales. Just the layer below the spreadsheet.