"Adding manpower to a late software project makes it later"
About this Quote
The subtext is a critique of command-and-control thinking. Managers want a lever they can pull that looks decisive, measurable, morally satisfying: hire, reassign, “all hands.” Brooks, writing from the trenches of large systems work, points out the hidden tax: onboarding time, knowledge transfer, coordination overhead, rework from diverging assumptions, and the social friction of shifting ownership midstream. Communication paths don’t scale linearly; they explode. The new hires need context, and the people who have context are the very ones already trying to save the schedule.
Context matters: Brooks formulated this in the era of IBM’s massive, high-stakes software efforts and later crystallized it in The Mythical Man-Month, when “software engineering” was still trying to pretend it could be managed like civil engineering. The aphorism became canonical because it names a pattern everyone in tech has lived through: the panic-staffing spiral that converts urgency into chaos.
Its sting is also ethical. “Manpower” reduces people to interchangeable units; Brooks insists, quietly, that creativity and shared mental models are the real scarce resources. You can’t sprint your way out of a coordination problem.
Quote Details
| Topic | Management |
|---|---|
| Source | Frederick P. Brooks, Jr., The Mythical Man-Month: Essays on Software Engineering. Addison-Wesley, 1975. Original source of the maxim later called "Brooks's Law": "Adding manpower to a late software project makes it later." |
| Cite |
Citation Formats
APA Style (7th ed.)
Jr., Frederick P. Brooks,. (2026, January 16). Adding manpower to a late software project makes it later. FixQuotes. https://fixquotes.com/quotes/adding-manpower-to-a-late-software-project-makes-118526/
Chicago Style
Jr., Frederick P. Brooks,. "Adding manpower to a late software project makes it later." FixQuotes. January 16, 2026. https://fixquotes.com/quotes/adding-manpower-to-a-late-software-project-makes-118526/.
MLA Style (9th ed.)
"Adding manpower to a late software project makes it later." FixQuotes, 16 Jan. 2026, https://fixquotes.com/quotes/adding-manpower-to-a-late-software-project-makes-118526/. Accessed 13 Feb. 2026.


