For three weeks, I argued about where to place your bets. The whole trilogy sat on one piece of my own homework — a heatmap of the 2026 HR trends I mapped by hand: 10 publishers, 20 themes, 64 trends. The Signal, The Noise, The Filter — a method for testing each one against your own evidence, and funding only what survives.

That was a question of allocation. It assumed the harder decision was already made.

This week I go underneath it — to the question the trend lists never print: not where to invest in your people, but whether to invest in them at all.

So let me put my position before the evidence: the instinct to divest from people and buy efficiency instead isn't discipline — it's a measurement failure. And in 2026 it has a new accelerant. Every board now has an AI case that pays back by Friday: a number, a headcount saved, a line you can point to. People make their case slowly — returns that are real but diffuse, earned over years, impossible to pin to a single line. So we cut the one cost we can't see. Divest from the human. Chase the efficiency. Call it prudence. It isn't — it's an invoice we've agreed not to open.

This week, I open it. Invest or divest — each carries a bill, and each carries a return, and the divest side has a price tag most P&Ls never print: in health, in capability, in productivity, in the colleague who quietly stops trying, and then quietly leaves. Then I hand you the instrument I use to put that cost in front of a board — the Workforce Risk Map, further down. It's how you make an invisible risk visible enough to fund.

Cost first — because the price of not investing is the easiest number to leave off the page, and the most expensive to keep ignoring.

— Tanguy

Four numbers, read from the world down to your own P&L. Skim them here; the one worth sitting with — and the instrument to act on it — are waiting below.

❤️ HEALTH & WELL-BEING ❤️ | Guidelines on mental health at work | World Health Organization (2022) | What if the biggest line item in your wellbeing budget is the one you never see? The WHO's first global guidelines on mental health at work estimate that depression and anxiety cost the world economy around US$1 trillion a year — a figure driven predominantly by lost productivity, not treatment. Built on systematic evidence reviews and GRADE-rated recommendations, the guidance reframes mental health as a function of how work is designed, not a private matter employees bring to the door.

🎉 PEOPLE ENGAGEMENT 🎉 | State of the Global Workplace 2026 | Gallup (2026) | If your best people are quietly checked out, what is that costing? Gallup's latest count puts the global bill for low engagement at US$10 trillion — about 9% of world GDP — in lost productivity, with engagement sliding to just 20% worldwide — its second straight annual fall and the lowest since 2020. Drawn from an ongoing survey of workers across more than 140 countries, the report reframes disengagement as an economic problem, not a morale one — and this year the productivity gap between those who are thriving and those merely present isn't just enormous and measurable, it is widening. And the slump has an author: Gallup pins most of it on managers, whose own engagement has slid further and faster than the teams they lead. Not one region of the world improved this year.

🎓 EMPLOYABILITY & LEARNING CULTURE 🎓 | New Economy Skills: Unlocking the Human Advantage | World Economic Forum (2025) | What happens to a skill you stop using? The WEF's white paper gives an uncomfortable answer: during the pandemic, the use of human-centric skills — teaching, collaboration, resilience — fell more than 5% below 2019 levels, and by 2025 not one had recovered. These same skills are the least automatable — only around 13% of the tasks tied to them can be meaningfully transformed by AI — making them both the most durable form of human capital and the easiest to lose through neglect.

🛡️ HUMAN CAPITAL RISK 🛡️ | Increasing your return on talent: The moves and metrics that matter | McKinsey & Company (2024) | Now bring it home to your own P&L. Would you sign off on a US$480 million loss you couldn't see on any report? McKinsey estimates that skill gaps, disengagement, inefficiency and attrition together drain roughly that much a year from a median-size S&P 500 company. The figure is directional, built on a hypothetical median firm, but the mechanics are concrete: a skills gap cuts individual productivity by about 22%, disengagement by 6%, and replacing one employee costs around $52,000.

Of the four, sit with the WHO figure — because of where the trillion dollars goes. It isn't treatment. It's lost productivity: people at their desks but unable to work well, and people who leave. And the same peer-reviewed model behind that number (Chisholm et al., 2016) found the other half of the equation: every US$1 put into scaling up treatment for depression and anxiety returns about US$4 in restored health and productivity.

Hold those two together and "the cost of not investing" stops being a slogan. The cost is real, it is mostly hidden as lost output, and the return on closing it is roughly four to one. That is the whole argument of this fortnight in a single line — and the hinge into next week.

The four findings above describe the same thing from four angles: your workforce as an unpriced risk. Boards act on the risks they can see — so here is the instrument I use to make this one visible, and turn “our people are an exposure we're not managing” into a picture a board will actually fund.

It borrows the discipline every other business risk already gets: name it, score it, map it.

Step 1 - Name it. Not a blank page — a fixed catalogue: 30 workforce risks across 7 dimensions and 3 tiers.

Source the skills you need, sustain a healthy, fair workplace, and strengthen resilience and compliance. The first is the talent supply chain every model already tracks; the other two are where this fortnight's cost actually lands, and where most models fall silent.

Step 2 - Score it. Rate each risk 1–5 on two axes — the likelihood it materialises and the consequence if it does — then net off your preparedness, so a risk you've genuinely got covered scores lower than one you've only named.

Step 3 - Map it. Plot likelihood against consequence (above). The top-right corner — high likelihood, high consequence — is your unpriced exposure. That is where next week's investment conversation begins.

I've written the whole framework up and given it away in full — all thirty risks, the scoring engine, a worked example: read The Workforce Risk Mapping →. Best run as a group: everyone scores independently, then compare. The disagreements are the point — they show which risks are visible to some leaders and invisible to others.

Your turn. Which of these seven dimensions is already carrying unpriced, unfunded risk in your organisation?

📈 The Opportunity of Investing — Invest or Divest in Your Workforce (2/2) · Sunday 19 July

The invoice comes due whether or not we open it — this week, we read the total. Next week we turn the ledger over: the companies treating people as an investment rather than an expense, and the returns they book for it. Plus the instrument that puts a real number on it: the Human Capital ROI formula.

— Tanguy

Mini-lexicon

Human Capital Risk — the absence, shortage or misalignment of the people and skills an organisation needs to deliver its strategy; a business risk, scored like any other.

Workforce Risk Mapping — PeopleCentriX's instrument for treating people risk like any other business risk: 30 risks across 7 dimensions and 3 tiers, each scored on likelihood, consequence, and preparedness.

Invest or divest — the prior decision beneath every people-strategy choice: whether to fund human capability or trade it for near-term efficiency. Each side carries both a cost and a return.

Human Capital ROI (HCROI) — the profit generated for every unit of money invested in people; next week's Toolbox instrument.

Method

The Workforce Risk Mapping sits inside the People Centricity Methodology™ — Empathise, Strategise, Realise, Analyse: read the context, decide deliberately, act, keep score.

References

Chisholm, D., Sweeny, K., Sheehan, P., Rasmussen, B., Smit, F., Cuijpers, P., and Saxena, S. (2016). “Scaling-up treatment of depression and anxiety: A global return on investment analysis.” The Lancet Psychiatry, 3(5), 415–424.

Deloitte. (2023). Managing workforce risk in an era of unpredictability. Deloitte Insights.

Gallup. (2026). State of the Global Workplace: The human side of the AI revolution (2026 report). Gallup, Inc.

Gartner. (2020). How to leverage data for more influential workforce planning [Talent Risk Evaluation Matrix]. Gartner, Inc.

International Organization for Standardization. (2018). ISO 30414:2018 — Human resource management: Guidelines for internal and external human capital reporting. ISO.

McKinsey & Company. (2024). Increasing your return on talent: The moves and metrics that matter.

Mercer Marsh Benefits. (2024). The five pillars of people risk. Marsh McLennan.

World Economic Forum. (2025). New economy skills: Unlocking the human advantage [White paper]. World Economic Forum.

World Health Organization. (2022). WHO guidelines on mental health at work. World Health Organization.