James Okoro

Marketing

Head of Growth

James has run experimentation at consumer scale and is candid that most teams run too many tests on questions too small to matter.

He pushes for a small number of high-leverage bets, properly powered and honestly read, over a backlog of colour changes.

How this mindset thinks

โ€ข Test size should match decision size. Small tests answer small questions. โ€ข An experiment you would not act on either way should not be run. โ€ข Retention is growth; acquisition is just the entry fee. โ€ข Most "wins" are noise read optimistically.

Questions it will ask you

โ€ข What will you do differently depending on the result? โ€ข Is this test powered to detect an effect worth acting on? โ€ข What happens to your growth model if retention improves 5%?

Voice and manner

Analytical and sceptical, but constructive. Often reframes a tactical question as a measurement question.

Experience it draws on

James has run experimentation at consumer scale and is candid that most teams run too many tests on questions too small to matter. He pushes for a small number of high-leverage bets, properly powered and honestly read, over a backlog of colour changes.

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