Mike Duboe

Partner, Greylock · 1 appearance on the record.

computed by AI from the episodes · how this works → · full disclaimer →

investoroperatorexecutive@mduboe ↗LinkedIn ↗greylock.com/team/#mike-duboe ↗

Mike Duboe is an investor at venture capital firm Greylock, where he focuses on commerce infrastructure, marketplaces, and consumer technologies. Prior to entering venture capital, he led growth at Stitch Fix through its IPO and headed growth at Tilt prior to its acquisition by Airbnb.

27statements → 3claims → 2claims resolved → 4.07/5average certainty → 2.22/5average debate potential → 4.5/5argument clarity · the sources → 13said about them ↓

2 supported 0 partly supported 0 contradicted 1 not checkable as stated how the 3 claims stand · each chip opens the sources

3 assertions · 2 opinions · 18 insights · 4 disclosures · every statement was checked. The predictions and assertions are the 3 claims: statements the public record can support or contradict. 2 are resolved, and 1 names no date, number or outcome precise enough to check. Everything else (opinions, insights, what ifs, disclosures) can never be settled by the record, so it carries no assessment.

The record, in short

What the tape says about how Mike argues and how the claims held up. Everything they said, and everything said about them, is in the tabs below.

Their most notable supported claim

Assertion Supported
Duboe: Stitch Fix grew organically and profitably after early VC rejections
“They had grown on the heels of organic and strong retention for the first few years and famously had a hard time raising venture money. So decided to just say, Hey, we're going to operate on the constraints of profitability.”
Mike Duboe Feb 16, 2023 ▶ 3:31 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings

Expressed certainty vs assessment result

none yet certainty 1
none yet certainty 2
none yet certainty 3
100% certainty 4
100% certainty 5

weighted support: a fully supported claim counts one, a partly supported claim counts half. Each filled bar is clickable and opens exactly those claims; "none yet" means nothing said at that certainty level has resolved yet

Argument clarity: do they answer the question? how? →

4.5 / 5 directness 4.8 · coherence 4.8 · precision 4.3 · compression 4

answered every one of 40 assessed questions directly

This is a score against a rubric. It is not a rank. Every host question → answer exchange is scored with names hidden on directness, coherence, precision and compression, 1–5 each, on meaning alone: disfluencies are ignored, and only raw unedited episodes count. This is the score that measures thought. Every scored exchange, scores shown → · The rubric and its checks →

How they sound: speaking style how? →

287 words/min while actually speaking · 22.9 um and uh per 1k words · 14.1 false starts per 1k · 29.1% of pauses land inside a clause

Measured by listening to the audio itself: 11,366 words across 1 episode of raw-level tape, transcribed verbatim with every um and uh kept, each one attributed only where the alignment onto our timed stream is unambiguous. These are measurements of speaking style. We do not rank them: across this corpus, fluency and argument quality are nearly uncorrelated (ρ≈0.2), and smooth talking does not signal clear thinking. How it's measured →

Everything Mike Duboe said on 20VC that made the record, most notable first. Filter by type, assessment or year in the ledger →

Insight
Duboe: Direct response attribution models offer false precision compared to holdout testing
“Many growth marketers aim for this, like almost a false sense of precision to give credit to a conversion on any one channel or any fractional set of channels. Oftentimes that's just false precision. And so even though we were highly analytical at stitch fix w…”
Mike Duboe Feb 16, 2023 ▶ 6:37 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Insight
Duboe: Startups must never hire a growth lead before finding product-market fit
“One principle that for sure is true is like never hire a growth person, pre-product market fit.”
Mike Duboe Feb 16, 2023 ▶ 13:16 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Insight
Duboe: Turning off paid acquisition is the ultimate product-market fit test
“One measure of product market fit health is what happens when you turn off all non-organic acquisition activities. And so ideally you should see some ongoing user base that's retained and ideally generating new users, even if at a much slower clip, right? If y…”
Mike Duboe Feb 16, 2023 ▶ 45:51 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Insight
Duboe: Paid marketing channel performance always degrades as customer acquisition scales
“The thing that many people miss early on is that paid degrades with scale. Yeah. Everyone says like, you know, you'll get better at it. So you'll fight kind of the laws of gravity that might happen in a short term, but on a long-term time horizon, performance …”
Mike Duboe Feb 16, 2023 ▶ 46:28 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Insight
Duboe: Subscription businesses need one-year CAC payback; e-commerce needs first-transaction payback
“Most, most consumer companies, if you're not paying back, like if you're a subscription business, you're not paying back within a year, that's probably problematic. Ideally if you're e-commerce, you're paying it back on first transaction”
Mike Duboe Feb 16, 2023 ▶ 54:42 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Insight
Duboe: Successful growth teams should eventually be absorbed into product and marketing
“If the practice of growth is successful, it should eventually abstract itself away and just be how product and marketing are run.”
Mike Duboe Feb 16, 2023 ▶ 10:09 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Opinion
Duboe: Product-touching growth programs should report to product, not marketing
“I typically say this work better under product. I think many sustainable growth programs require with engineering and product discipline. Marketing really only makes sense for e-commerce companies where the product is like simple and linear. You're likely goin…”
Mike Duboe Feb 16, 2023 ▶ 12:13 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Disclosure
Duboe: Pre-IPO Stitch Fix capped single-channel marketing concentration at 50 percent
“We had a constraint that I saw with my team was we would not get more than 50% concentrated in any one channel, even if it were short-term optimal to do so.”
Mike Duboe Feb 16, 2023 ▶ 49:14 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Insight
Duboe: Measurement and Creative Volume Are the Only Sustainable Marketing Advantages
“Ultimately what makes one great, or the only sustainable advantage on, on channels is having great measurement, being sophisticated measurement, and then having great volume of creative and great creative that performs.”
Mike Duboe Feb 16, 2023 ▶ 50:57 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Disclosure
Duboe: Stitch Fix boosted ad performance by replacing TV-quality ads with iPhone videos
“Some of the biggest, most impactful changes we made at Stitch Fix were, Lowering the bar to actually like creative content we just put out there. So rather than having very high produced kind of video ass TV kind of quality video assets, let people shoot stuff…”
Mike Duboe Feb 16, 2023 ▶ 51:24 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Insight
Duboe: Payback period is a superior growth metric to LTV/CAC ratios
“The better method, which I was kind of getting at was payback period, which removes the notion of lifetime, but also it could be calculated on a more granular level.”
Mike Duboe Feb 16, 2023 ▶ 56:14 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Disclosure
Duboe: Stitch Fix maintained strict pricing discipline by never offering product discounts
“We never discounted any product there, which is rare for you come actually. And it was a core part of the company's discipline.”
Mike Duboe Feb 16, 2023 ▶ 1:00:05 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Assertion Supported
Duboe: Stitch Fix grew organically and profitably after early VC rejections
“They had grown on the heels of organic and strong retention for the first few years and famously had a hard time raising venture money. So decided to just say, Hey, we're going to operate on the constraints of profitability.”
Mike Duboe Feb 16, 2023 ▶ 3:31 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Insight
Mike Duboe: Head of Growth role accelerates learning and controls North Star metrics
“I kind of prefer a broad definition, which is someone who's responsible for two things. One is accelerating the company's pace of learning. This is typically done through experiments. But that's a very important, important piece. Like essentially the growth te…”
Mike Duboe Feb 16, 2023 ▶ 7:40 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Insight
Mike Duboe: Cross-functional pods enable autonomous growth experimentation without interfering with roadmaps
“I think part of the magic of cross-functional growth pods, which is generally the structure I prefer, is you can actually Be fully autonomous in going and running an experiment to validate or invalidate a hypothesis without actually needing to step in the road…”
Mike Duboe Feb 16, 2023 ▶ 9:17 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Insight
Duboe: A startup's first growth hire should be an analytics professional
“My first growth hire is typically an analytics person.”
Mike Duboe Feb 16, 2023 ▶ 14:09 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Insight
Duboe: Analytics debt is as common as tech debt in startups
“I think analytics debt is just as common, if not more common.”
Mike Duboe Feb 16, 2023 ▶ 14:16 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Assertion Not checkable as stated
Duboe: Faire maintained high analytics signal by tracking only three core metrics
“It was, you know, if you look at the dashboards and kind of what they're reporting out on, it's just very high signal and noise. And so they are Rather than going and tracking everything and reporting on everything, it was, here's actually the three things tha…”
Mike Duboe Feb 16, 2023 ▶ 17:30 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Insight
Duboe: Conduct candidate reference checks early rather than as late formalities
“I think one of the biggest mistakes people make is doing references too late and kind of treating it as a formality. Doing them early on, I think is a great way to kind of filter.”
Mike Duboe Feb 16, 2023 ▶ 25:38 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Insight
Duboe: Covering up failed experiments is the worst growth practitioner flaw
“For growth, one of the important things that you're looking for is somebody who's not afraid to fail. Right. Failure is part of the experimentation process and actually like the worst thing one could do in a growth role is go and try to cover up failures or ju…”
Mike Duboe Feb 16, 2023 ▶ 27:07 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Insight
Duboe: A startup's capacity and speed are constrained by its number of 'barrels'
“If you only have five barrels, you can only do five things simultaneously, right? And so as you're hiring people, just keep an eye out for who those barrels are. And when you find one, do everything in your power to keep them engaged, throw more responsibility…”
Mike Duboe Feb 16, 2023 ▶ 32:29 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Insight
Duboe: Growth loops yield compounding growth while linear funnels decay at scale
“Loops, they're powerful because they lead to compounding growth systems versus typically funnels, you know, are more linear growth trajectories that will oftentimes decay with scale.”
Mike Duboe Feb 16, 2023 ▶ 36:29 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Insight
Duboe: Funnel-based organizational structures create silos and conflicting team incentives
“Structuring org around a funnel creates silos and teams will optimize at the expense of one another.”
Mike Duboe Feb 16, 2023 ▶ 38:34 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings
Disclosure
Duboe: Stitch Fix paused national TV ads for eight weeks to test incrementality
“We ran an eight week holdout test where we actually paused national TV advertising and we would always buy nationally because it was a lot cheaper from a CPM standpoint to do so. We paused national for eight weeks. We picked five regions and we went and go bou…”
Mike Duboe Feb 16, 2023 ▶ 53:18 Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #978 · 20VC with Harry Stebbings

Show 3statements(3 left)

The other half of the tape: Mike Duboe's own voice is left out of every number here. Other people bring the name up 13 times in 3 episodes on 20VC. every mention, with the transcript →

Who brings them up most Harry Stebbings 10David Sze 3

Every mention by year

Appearances (1)

EpisodeDateSpeaking time
Mike Duboe: Top 5 Lessons Scaling Stitch Fix to IPO; Why CAC/LTV is a BS Metric | 20VC #97 Feb 16, 2023 46m
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