That is not an "ideas guy"; that is a "sales person". And a strong sales person is essential and actually adds value. While some technical founders can also be

That is not an "ideas guy"; that is a "sales person". And a strong sales person is essential and actually adds value. While some technical founders can also be great sales people; it is uncommon so this is a good pairing. When people say "ideas guy", at least in my local techno-sphere, it means the person that has "some great idea", but no skills to implement, no skills to sell it, and no money to back it. We get "idea guys" at our tech meetups on a somewhat regular basis. They just show up one day, and it's always the same thing, "So I have this great idea to do X, but I don't know how to program. I don't have any money to pay anyone, but I'll give you a 10% equity to build my idea. Huh?, no no I don't have any existing customer relationships either. Now which one of you can get this done the fastest?" On the other hand we have people that fit into one of the 3 necessary/valuable categories (Implementers/Sellers/Financial Backers). People in all 3 of these categories have ideas and add real value.