A Hacker and a Hustler. Every great startup has a pair.
A Hacker is more than a code monkey, who can quickly build software and find interesting ways to hack together code. Thats a developer. Thats someone who is definitely an important part of a startup, but not critical to its success. A Hacker is someone who looks the problem, and solves it in a unique and special way. A Hacker finds the process of problem solving exciting and interesting, and spends the majority of their time looking at the problem in multiple ways, finding many potential solutions.
A Hustler on the other other hand is a relationship builder. Someone who can build direct relationships with their customers. They arent really promoters, although they do a lot of promotion. They arent salespeople, although they do a lot of selling. They are passion people. They have the ability to articulate their passion clearly and in a way that gets other people equally passionate.