Earlier this year, I gave another talk about Web Performance at Etsy for the NY Web Performance meetup. One of the points we stress on my team is that while we have a dedicated performance team, the primary focus is on building tools, settings goals, and creating a performance culture where everyone on the engineering team at Etsy is thinking about performance. We don’t believe in cleaning up other peoples’ mess, we believe in teaching others to “yearn for the vast and endless sea.”
In fact, at Amazon we have a performance team, but we explicitly seek to put ourselves out of business. We want the tools to be so good and the culture so strong that one day there won’t be a need for a performance team anymore.