In 2006, Larry Page and Sergey Brin brought in Laszlo Bock from General Electric to run a function most companies still call HR. Laszlo renamed it People Operations and spent the next decade proving that people decisions could be tested like any other business problem. Under his leadership, Google grew from roughly 6,000 employees to 75,000 while its culture remained intact, according to Berkeley Executive Education. His record spans several distinct lessons, not one, and each still applies far outside a technology campus.
Turning HR into a Science
Before Google, Laszlo had spent years at McKinsey advising clients in technology, private equity and media on organisational design, and at GE, where he was a vice president of human resources. At Google, he built a People Analytics team that applied statistical rigour to hiring, promotion and retention. According to a report by Workforce.com, the company screened roughly three million job applications a year under his direction to find culture-fit candidates. The philosophy was to treat hiring practices as hypotheses that could be tested against outcomes.
Lesson: A function built on instinct gains a lasting advantage once someone insists on measuring it.
Questioning Credentials as a Proxy for Talent
Google had long screened candidates on grade point averages and test scores, assuming strong academic records predicted strong employees. Laszlo’s team ran the numbers and found no such link. GPAs and test scores turned out to be worthless as hiring criteria, showing no correlation with performance except a slight one among brand-new graduates, he told the New York Times in 2013. Google stopped asking most candidates for transcripts altogether, and the share of employees without a college degree grew steadily on several teams.
Lesson: Leaders willing to discard a trusted filter, once the evidence stops supporting it, make room for talent that conventional screening would have missed.
Trusting Evidence Over Assumption
Google’s engineers had long treated managers as unnecessary friction, and in 2002 the founders briefly eliminated all engineering management roles, believing a flat organisation would accelerate innovation. The structure did not work, yet doubts about management’s value persisted for years. In 2008, Laszlo launched Project Oxygen, partnering with statistician Prasad Setty to quantify management’s impact using performance reviews, surveys and award nominations. Technical expertise, the trait Google had historically prized most in promotions, turned out to be the least important quality of a strong manager, he later acknowledged. Coaching and clear communication mattered far more.
Lesson: Strong leaders test the assumptions embedded in their own promotion criteria, even when the result overturns years of settled practice.
Treating Knowledge as a Public Good
Laszlo arrived in the United States as a child refugee from communist Romania, a fact he rarely dwelt on publicly but one that shaped his instinct to open doors rather than guard them. His book, Work Rules!, sold more than 750,000 copies and appeared in more than 25 languages, according to his BetterUp biography. Laszlo donated the entire proceeds to charities supporting immigrants, education, and veterans. Publishing Google’s internal hiring and management research, rather than keeping it proprietary, reflected the same instinct at scale.
Lesson: Knowledge gathered inside one organisation creates more value once it circulates beyond it.
Letting Go and Building Again
Laszlo left Google in 2016 after a decade in the role and did not retreat into commentary. He founded and scaled companies, most recently one sold to NVIDIA, and co-founded Gretel.ai, a synthetic data company focused on privacy. He now holds advisory and governance roles rather than an operating title, including co-director of the Berkeley Transformative CHRO Leadership Academy and board member of the Stanford Centre for the Advanced Study of the Behavioural Sciences. A majority of the startups he advises have gone on to become unicorns or been acquired, the CHRO Association notes.
Lesson: Stepping back from an iconic role does not end a leader’s influence. It only changes its shape.
Five Different Roads to the Same Discipline
Laszlo Bock’s career does not reduce to a single memorable decision. It moves from building a measurement function to discarding a trusted hiring filter, testing a deeply held assumption about management, giving away proprietary knowledge, and starting over outside the institution that made him famous. Each move required the same underlying discipline: treat a comfortable belief as a claim to be checked, not a fact to be defended. For leaders reading his record today, that discipline travels far better than any single practice he built at Google.
