People
The operators, researchers, and writers behind the ideas — every one cited with their standing to speak.
Sam AltmanOperatorCEO of OpenAI since 2019 and president of Y Combinator from 2014 to 2019, where he says he observed thousands of founders firsthand. His essays on ambition and success are cited here for the counsel to judge people by their rate of improvement, not their current level of experience or accomplishment.Marc AndreessenOperatorCo-created the Mosaic browser, co-founded Netscape and the venture firm Andreessen Horowitz, and wrote the pmarca-blog guides to hiring and executives MC cites, but he was never the operating CEO of any of the companies he built, and his management writing is a founder's playbook, not research.AristotlePhilosopherGreek philosopher (384–322 BCE) whose Nicomachean Ethics is not a management text but the founding text of virtue ethics, still one of the three standing positions in moral philosophy today. Its argument that every virtue of character sits between a vice of excess and a vice of deficiency is the direct ancestor of the Golden Mean.Christopher M. BerryResearcherIndustrial-organizational psychologist and John F. Mee Chair of Management at Indiana University's Kelley School of Business, researching the validity and fairness of pre-employment tests and the measurement of employee job performance; co-author of the 2022 meta-analysis that revised the field's validity estimates for personnel selection.Jerome S. BrunerResearcherCognitive and developmental psychologist who taught at Harvard, Oxford, and NYU Law; author of The Process of Education (1960) and, with David Wood and Gail Ross, co-author of the 1976 paper that introduced the concept of instructional scaffolding.Jeffrey BussgangOperatorCo-founder and general partner at Flybridge Capital Partners, and senior lecturer at Harvard Business School (before that, an operator: a cofounder of Upromise and an early employee of Open Market through its IPO). Author of Mastering the VC Game, which introduced the Jungle/Dirt Road/Highway metaphor for startup-stage maturity that MC's Terrain Test builds on.Harry CollinsResearcherEmeritus professor of sociology at Cardiff University; decades-long ethnographer of gravitational-wave physics who co-authored Rethinking Expertise, MC's source for the warning that fluent talk about a domain is not proof of expertise in it.Tyler CowenResearcherEconomist at George Mason University; co-author of the Marginal Revolution blog, host of Conversations with Tyler, and co-author of Talent.Robert X. CringelyJournalistPen name Mark Stephens made famous as InfoWorld's gossip columnist (1987-95) and as author of Accidental Empires (1992), whose Commandos, Infantry, Police model of company growth is the direct, credited source for Simon Wardley's Pioneers, Settlers, Town Planners. A technology journalist and industry observer, not a management researcher, and one whose claimed Stanford doctorate and professorship the university publicly contradicted in 1998.Mihaly CsikszentmihalyiResearcherHungarian-American psychologist who originated the theory of flow, the state of full absorption when a challenge matches a person's skill, while chairing psychology at the University of Chicago and later as the C.S. and D.J. Davidson Professor of Psychology and Management at Claremont Graduate University. His challenge-skill model gives managers a concrete way to calibrate how much stretch to put in a delegated task.Kristina Graci deLunaOperatorPartner on Andreessen Horowitz's People Practices team, focused on HR and recruiting; co-author of a16z's public hiring-process guide, the source of the sample role definition MC's The MOC cites. Her authority is practitioner-grade, built running hiring and HR for a16z's portfolio companies, not from management research or company-building.Hubert DreyfusPhilosopherA Harvard-trained Berkeley philosopher (1929–2017) and the leading American interpreter of Heidegger, whose 1965 RAND report and 1972 book What Computers Can't Do argued that human expertise is embodied skill rather than rule-following, a claim the AI establishment first ridiculed and later substantially conceded. With his younger brother Stuart, an operations researcher, he built that argument into the five-stage Dreyfus model of skill acquisition.Stuart DreyfusResearcherA mathematician, not a management scholar: professor emeritus of operations research at Berkeley who co-authored Applied Dynamic Programming, a foundational text of the field, with Richard Bellman at RAND. With his older brother Hubert, a philosopher, he built the Dreyfus model of skill acquisition (the basis for MC's Dreyfus Model) to argue about artificial intelligence, not to teach managers.Peter F. DruckerTheoristCelebrated by BusinessWeek as 'the man who invented management': author of The Practice of Management and The Effective Executive, and consultant to General Motors, Sears, IBM, and dozens of other companies and nonprofits.Graham DuncanInvestorCo-founder and co-chief investment officer of East Rock Capital, a multi-family investment office that has spent two decades finding and seeding talented external investment managers rather than picking stocks itself. Harvard Business School published a 2024 case study on East Rock's talent-first approach; Duncan writes essays distilling his method for judging people into practical questions any manager can borrow.Douglas EngelbartResearcherElectrical engineer who founded and led SRI's Augmentation Research Center (1959–1977), where his team built the computer mouse and hypertext as pieces of a larger research program on augmenting human intellect. His 1962 report and 1968 'Mother of All Demos' argued tools should amplify human judgment, not replace it, and his ABC model, distinguishing the work of doing a job from the work of improving how it's done, is a direct forerunner of continuous-improvement thinking in management.Anders EricssonResearcherPsychologist at Florida State University (1947–2020) who originated the concept of deliberate practice and led the study of expert performance; co-author of Peak, which brought deliberate practice to general readers.Robert EvansResearcherProfessor of Sociology at Cardiff University and co-founder, with Harry Collins, of the 'Third Wave of Science Studies' (the research programme behind Rethinking Expertise, 2007, and its periodic table of expertises for judging who counts as a knowledgeable authority).Molly GrahamOperatorOperator who ran people/culture and operations functions through four hypergrowth companies (Facebook, Quip as COO, the Chan Zuckerberg Initiative, and Lambda School) and coined "Give Away Your Legos," the widely-read 2015 essay on the identity toll of handing off responsibility as a company scales. She now hosts TED's WorkLife podcast.Andy GroveOperatorIntel's third employee and its CEO from 1987 to 1998, Grove drove the industry-defining shift from memory chips to microprocessors and wrote the canonical text on operating discipline, High Output Management.Boris GroysbergResearcherRichard P. Chapman Professor of Business Administration at Harvard Business School, and author of Chasing Stars, a study of more than 1,000 star Wall Street analysts at 78 investment banks showing that star performance is substantially firm-specific and typically declines for years after a move to a new firm.HoraceWriterRoman lyric poet (65–8 BCE) of the Augustan age who coined aurea mediocritas, 'the golden mean,' in Odes 2.10, the phrase that names MC's Golden Mean tool (Aristotle originated the underlying doctrine).Ben HorowitzOperatorCo-founder and general partner of Andreessen Horowitz; previously co-founder and CEO of Opsware (formerly Loudcloud), acquired by Hewlett-Packard for $1.6B in 2007. Author of The Hard Thing About Hard Things and of the foreword to the 2015 Vintage edition of Andy Grove's High Output Management.John E. HunterResearcherIndustrial-organizational psychologist who spent nearly all of his career in the Department of Psychology at Michigan State University; co-developed psychometric meta-analysis with Frank L. Schmidt and co-authored their 1998 meta-analysis of 85 years of personnel-selection research.Claire Hughes JohnsonOperatorRan Stripe's operations as COO for seven years, scaling it from 160 employees to over 7,000, and now serves the company as a corporate officer and advisor; before that, a decade as a Google vice president across AdWords online sales, Google Offers, and the self-driving car project. She wrote Scaling People, the operating playbook distilled from both records.Daniel KahnemanResearcherPsychologist and Nobel laureate in economics; co-creator with Amos Tversky of prospect theory and the heuristics-and-biases research program, and author of Thinking, Fast and Slow.Dave KelloggInvestorTwo-time enterprise-software CEO (MarkLogic, Planful/Host Analytics) and former SVP Marketing at Business Objects whose Kellblog essays define what managers, directors, and VPs are actually paid to do.Gary KleinResearcherCognitive psychologist who ran his own applied-research firm for 27 years studying how experts like firefighters and fighter pilots actually decide under pressure; he originated the recognition-primed decision model and the premortem technique, and helped found the naturalistic decision making movement.Max LandsbergExecutive CoachExecutive coach, former McKinsey & Company partner, and author of The Tao of Coaching (1996), where he coined the Skill/Will matrix.Filip LievensResearcherLee Kong Chian Professor of Human Resources at Singapore Management University researching personnel selection and situational judgment tests; co-author of the 2022 Sackett et al. meta-analysis that revised the field's estimates of which selection methods predict job performance.Michael LoppOperatorEngineering leader at Apple, Netscape, Borland, Palantir, Slack, and Pinterest who has written a two-decade chronicle of the craft of engineering management under the pen name Rands.Timothy MansfieldOperatorCEO of the Interaction Consortium, a Sydney software and strategy consultancy, and a former academic researcher with a PhD in computer science from the University of Queensland; Management Craft cites his 2018 explainer of Simon Wardley's Pioneers, Settlers, Town Planners model as a clear short version of the cycle, not as the model's origin.Danny MeyerOperatorFounder of Union Square Hospitality Group and Shake Shack, and author of Setting the Table, the canonical text on hospitality as an operating discipline.Ethan MollickResearcherEthan Mollick is an Associate Professor of Management at the Wharton School and co-director of its Generative AI Labs, holding the endowed Ralph J. Roberts Distinguished Faculty Scholar chair. A former startup co-founder with an MIT Sloan PhD in management, he built an empirical research record in entrepreneurship years before turning the same method on generative AI in his bestseller Co-Intelligence.Gideon NaveResearcherCarlos and Rosa de la Cruz Associate Professor of Marketing at the Wharton School; co-author, with Steven D. Shaw, of a 2026 SSRN working paper on how AI is reshaping human reasoning and the rise of cognitive surrender.Richard E. NisbettResearcherSocial psychologist at the University of Michigan whose 1977 paper with Timothy Wilson showed people have poor introspective access to their own reasoning, and whose later research showed reasoning itself can be taught; co-author with Lee Ross of The Person and the Situation, the fundamental-attribution-error synthesis.Paul C. PriceResearcherProfessor of psychology at California State University, Fresno, studying judgment and decision-making; with Eric Stone, showed that people prefer more confident advisors even when confidence doesn't track accuracy, the bias managers repeat when weighing advice from consultants, forecasters, and their own teams.Gail RossResearcherDevelopmental psychologist who, as a Harvard graduate researcher, co-authored Wood, Bruner & Ross's 1976 paper naming instructional scaffolding. The rest of her long research career stayed in pediatric and clinical psychology, entirely outside management.Lee RossResearcherSocial psychologist at Stanford University; coined the term 'fundamental attribution error' in 1977 and co-authored The Person and the Situation, showing that observers systematically overweight disposition over situation when judging others' behavior, a core bias in performance judgment.Paul R. SackettResearcherIndustrial-organizational psychologist at the University of Minnesota whose corrected meta-analyses reshaped which hiring predictors (structured interviews, cognitive tests) actually hold up once range-restriction errors are fixed.Edgar ScheinResearcherOrganizational psychologist who taught at MIT Sloan for over six decades and founded the modern study of organizational culture; author of Organizational Culture and Leadership and the 1996 paper reframing Kurt Lewin's change theory as a model of managed learning.Frank L. SchmidtResearcherIndustrial-organizational psychologist at the University of Iowa; co-author with John E. Hunter of the 85-year meta-analysis of selection methods that is the canonical reference for hiring predictor validity.Steven D. ShawResearcherPostdoctoral Researcher at the Wharton School; co-author, with Gideon Nave, of a 2026 SSRN working paper on how AI is reshaping human reasoning and the rise of cognitive surrender.Geoff SmartOperatorCo-author of WHO: The A Method for Hiring; Chairman of ghSMART, whose research (interviews with more than 20 billionaires and 60 CEOs, investors, and thought leaders) produced the Scorecard method that MC's The MOC descends from.Andy SparksOperatorFounder of Management Craft and, since 2020, a full-time executive coach to founders and CEOs, more than 60 leaders and 1,800 hours of practice. He co-founded and ran Holloway and co-founded Mattermark as its COO, and writes here about the one-to-one-hundred transition he has now watched from both seats.Randy StreetOperatorCo-author of WHO: The A Method for Hiring and senior advisor at ghSMART, the leadership advisory firm whose studied hiring decisions produced the scorecard method; its first Managing Partner, 2009-2021.Jeff StumpOperatorOperating partner leading the Talent Network team (Andreessen Horowitz's in-house executive-search practice); co-author, with Kristina Graci deLuna, of a16z's public hiring-process guide, the source MC's The MOC cites for the format in practice.Philip E. TetlockResearcherLeonore Annenberg University Professor at the University of Pennsylvania; ran the twenty-year Expert Political Judgment study showing most pundits' forecasts barely beat chance, then was Principal Investigator of the Good Judgment Project, which identified what actually makes some forecasters reliably better.Simon WardleyTheoristFormer CEO of Fotango, now a researcher at Leading Edge Forum/DXC; created Wardley Mapping (2005) and the Pioneer, Settler, Town Planner model for organizing teams as activities evolve from novel to commoditized.Liz WesselOperatorCo-founder and former CEO of WayUp, the early-career hiring platform, from 2014 to its 2021 merger with Yello; now a partner at First Round Capital, where she popularized the 'calibration call' hiring technique.David WoodResearcherDevelopmental psychologist at the University of Nottingham whose 1976 paper with Jerome Bruner and Gail Ross introduced instructional scaffolding — support calibrated to the learner's current competence, then progressively withdrawn.Charlene ZhangResearcherIndustrial-organizational psychologist and research scientist at Amazon; Paul Sackett's PhD advisee at the University of Minnesota; co-author of the 2022 meta-analysis that revised the field's validity estimates for personnel-selection predictors.