John Doer is a famous venture capitalist worth billions of dollars. As a partner at Kleiner Perkins, he steered early investments into Netscape, Amazon, Intuit, and Google, to name a few. He’s like the Mick Jagger of venture capital: a lot of hits, and he’s been around for a long time.

Apart from picking winners (and being a passionate crusader to end climate change), he’s also known for believing in the idea of Objectives and Key Results. He wrote a book about it called Measure What Matters. Doer also coached Google to build all of its strategies around a simple concept: gold can be found by comparing well-crafted business objectives with accurately measured results.