Andrew Parker came up through product design and management before moving into venture, and he still evaluates founders partly on product craftsmanship, favoring those building new markets with compounding advantages like network effects or data. He's especially drawn to API-first and messy-data companies that connect fragmented systems into something larger, keeps a public record of his investment reasoning to stay accountable, and writes candidly about tough moments like busted term sheets—reflecting an approach shaped by learning the trade through close mentorship at USV and Spark and now mentoring younger investors himself.