Mar 23, 2022 · 40m · 20vc
20VC: Startups Fail Because They Do Not Take Enough Risk, Why A/B Testing is Inefficient and Slows You Down, Why It is Impossible To Hire Good PMs so Stop Trying & 3 Key Signals The Best Engineers Present with Grant LaFontaine, Founder & CEO @ Whatnot
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In this episode of The Twenty Minute VC, host Harry Stebbings interviews Grant LaFontaine, co-founder and CEO of Whatnot, who shares the key operating principles driving America's fastest-growing marketplace. LaFontaine details Whatnot's engineering-first culture, counter-conventional views on product management and A/B testing, capital allocation for big bets, and lessons in scaling leadership as a first-time founder.
How this conversation actually went
Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. Harry holds 28.8% of the talking time here. How this is scored →
speaking balance: gold is Harry, purple is the guest (3 minute bins)
Grant unequivocally rejects founder angel investing with an emphatic 'Don't do it. Never', dismissing common founder justifications as unaligned with optimizing company success.
Hardest push from Harry ▶ 27:30 Harry challenges GMV with alternate North Star metricHarry explicitly challenges Grant's focus on GMV by advancing his own thesis that repeat seller rate is a far better North Star metric and inviting Grant to 'shoot me down'.
Biggest teaching moment ▶ 27:50 Grant corrects Harry on leading vs lagging metricsGrant breaks down why Harry's suggested repeat seller metric is flawed, explaining that retention is a lagging indicator that masks underlying platform quality issues until buyers and sellers have already left.
Harry holds his own ▶ 34:52 Harry defends angel investing as a learning vehicleHarry pushes back on Grant's ban on founder angel investing by citing first-hand founder arguments that investing provides operational insights that can be brought back to benefit the core business.
the scores for every segment, with the reasoning behind each
| Chapter | Topic | Harry as informed peer | Guest teaching | Guest disagreement | Harry pushing back | Why |
|---|---|---|---|---|---|---|
| The Origins and Early Pivots of Whatnot | 2 | 3 | 2 | 1 | Harry introduces Grant and asks standard origin questions about early pivots and learnings from Facebook and Google. Grant gently reframes the notion of an 'aha moment', explaining that pivots produce high anxiety rather than sudden epiphanies. Grant also introduces Whatnot's radical 50-to-1 engineer-to-PM ratio. | |
| Why Early-Stage Startups Don't Need PMs | 2 | 4 | 2 | 2 | Grant explains why FAANG PMs struggle at early-stage startups due to over-reliance on strategy and data over user empathy. He outlines Amazon's framework for one-way versus two-way door decisions to justify executing uncomfortably fast. Harry prompts on speed vs quality trade-offs. | |
| Balancing User Feedback with Intuition and Taste | 3 | 3 | 1 | 1 | Harry asks a strong operational question regarding how Whatnot evaluates product taste when interviewing engineers. Grant details their practical product interview process, emphasizing user empathy and willingness to take ownership without process overhead. | |
| Inverting Risk Focus and Embracing Failure | 4 | 4 | 3 | 3 | Harry brings up a CEO thesis that the best CEOs are resource allocators to question Grant on how bets are selected. Grant pushes back on conventional FAANG risk-mitigation, arguing startups fail more often by not taking enough upside risk than by taking too much. | |
| Building and Maintaining Culture in a Remote Environment | 4 | 3 | 1 | 3 | Harry leverages backchannel feedback from Whatnot investors to ask about culture and probes Grant on the friction of letting underperforming hires go. Grant candidly admits early scaling mistakes where hires were made via referrals without explicit principle vetting. | |
| Learning Lessons from Outages and Prioritizing Quality | 3 | 4 | 3 | 2 | Grant recounts severe outage issues from moving too fast and rejects standard B2B/VC playbooks for consumer startups. He explains that metrics are a second-order phenomenon following deep user empathy and describes how their growth team operates without standard A/B testing. | |
| The Pitfalls of Over-Relying on A/B Testing | 3 | 5 | 4 | 2 | Harry questions Grant's stance against A/B testing given industry orthodoxy. Grant forcefully argues that A/B testing slows execution, lowers expected value compared to high-confidence shipping, and breeds risk-averse incrementalism. | |
| Choosing GMV and Core Health Metrics Over Single North Stars | 6 | 5 | 4 | 6 | Harry directly challenges Grant's choice of GMV by proposing percentage of repeat sellers as a superior North Star metric. Grant counters Harry's proposition by demonstrating that repeat seller retention is a lagging indicator that hides trust and quality issues until after churn occurs. | |
| Navigating Leadership Challenges as a First-Time Founder | 3 | 3 | 1 | 1 | Harry and Grant engage in a personal discussion about leadership weaknesses and first-time founder challenges. Grant openly shares his difficulty with hard performance conversations and how CEO coach Matt Mochary helped establish executive feedback frameworks. | |
| Managing Imposter Syndrome and Handling Startup Anxiety | 5 | 4 | 4 | 5 | In the quickfire section, Grant vehemently opposes founders doing angel investing. Harry pushes back with the counterargument that angel investments provide founders with cross-industry learnings, but Grant firmly rejects this justification as a slippery slope and distraction. |