Exactly. To me, it seems that ideas are not really so distinct from their execution. Of course it's possible to have a 'great idea' without the ability to execute it, and it's possible to possess the ability without the idea, but both of these should be disregarded as uninteresting. Some might say then, that the 'interesting' part is the balance of idea and implementation, but I think that the significant ideas/projects are really only so because of the people that fostered them.