Because TurboTax does most of its sales around tax season in the United States, it used to have an extremely conservative culture. Over the course of the year, the marketing and product teams would conceive one major initiative that would be rolled out just in time for tax season. Now they test over five hundred different changes in a two-and-a-half-month tax season. They’re running up to seventy different tests per week. The team can make a change live on its website on Thursday, run it over the weekend, read the results on Monday, and come to conclusions starting Tuesday; then they rebuild
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