I think I have a slightly different spin on the difference. I tend to see, rightly or wrongly, a Builder as someone who is going to see a job through to the finish - a details person, in essence. A Hacker, in YC parlance.
I see Entrepreneurs as those that create the ideas, or see the vision of how an idea could be used, implemented (on a broad level), or sold. I feel an Entrepreneur's skillset lends itself to creating the team, inspiring the vision and making the deals necessary to establish the company as a viable entity.
I also tend to see Entrepreneurs as quickly bored (perhaps that is just how I see myself) and eager to move onto the next thing.
I guess that's why I feel a startup generally needs two co-founders - a business person and a techie person. Ideally, they'll each have a degree of appreciation for the other's domain.
I see Entrepreneurs as those that create the ideas, or see the vision of how an idea could be used, implemented (on a broad level), or sold. I feel an Entrepreneur's skillset lends itself to creating the team, inspiring the vision and making the deals necessary to establish the company as a viable entity.
I also tend to see Entrepreneurs as quickly bored (perhaps that is just how I see myself) and eager to move onto the next thing.
I guess that's why I feel a startup generally needs two co-founders - a business person and a techie person. Ideally, they'll each have a degree of appreciation for the other's domain.