Clover ERA.
Books
Catalogue·Three books, one thesis·cloverera.com/books
Books

Three books, one thesis.

Clive Hays and Neil Hays have written three books documenting the same observation: that retention failure is the visible symptom of a deeper invisibility. The Trillion Dollar Problem (2024) named the financial scale, and introduced the CLOVER framework. Already Gone (2026) named the human scale. Silent Degradation (forthcoming, 2026) names the structural scale.


Section 01The intellectual arc

The body of work began with a question.

2023 — 2026
Three books
One observation

In 2023 Clive and Neil Hays were consulting with Fortune 500 companies on transformation programmes when they noticed a pattern they could not stop seeing. The same retention failures repeated across organisations of different sizes, sectors, and cultures. Companies invested heavily in engagement programmes that moved survey scores temporarily and changed nothing about daily manager behaviour.

The Trillion Dollar Problem (2024) was the first attempt to name what they were seeing. The book decomposed the financial cost of workforce retention failure across the Fortune 500, putting concrete numbers on a phenomenon that companies had been treating as an unavoidable cost of doing business. The trillion-dollar figure in the title was not metaphor. It was the calculated annual cost of voluntary attrition across the largest American companies, with the methodology documented in the book.

Already Gone (2026) shifted from financial scale to human scale. Where The Trillion Dollar Problem made the cost visible, Already Gone made the experience visible. Seventy-eight short entries, each documenting a small signal that managers consistently miss before someone resigns. The book was structured as a pattern catalogue rather than a conventional management text. Read in order, the seventy-eight entries form a portrait of organisational invisibility.

Silent Degradation (forthcoming, 2026) is the third book and the most ambitious. Where the first two named the cost and the experience, Silent Degradation names the structural phenomenon. The book argues that the post-WWII productivity model has broken in ways that make traditional engagement and retention frameworks obsolete. The subtitle is The Manager Gap, the Cohort, and the Cost of Invisibility.


Section 02The books

Financial scale, human scale, structural scale.

Where to read

The books are available from Amazon and other retailers. The full publication and citation information for each book is documented on the individual book pages.


Section 04Or measure your own

If the body of work is familiar, the diagnostic is free.

Manager Gap Index
10 minutes
Free

The books document the financial, human, and structural scales of the same problem. The Manager Gap Index is the live diagnostic that produces a single score and a six-layer cost estimate from the same six dimensions. It takes ten minutes. Take the Manager Gap Index

Or, if you already know your exposure: schedule a 15-minute Cohort Conversation with one of the founders.