[lojack]

More broadly, there are finders, minders, and grinders. Different companies need different compositions of those characteristics, but startups tend to lean towards finders (people that can sell) and grinders (the aforementioned "doers").

I don't think it's good for any individual to be an extreme with any trait. Thats how you end up with a sales team that sells the world with no regard for how it'll get done, or a developer who can crank out features with no ability to support those features, or product folk that spend hours every day with meetings full of people toiling over all the accessories that may one day need to fit inside your bike shed.