http://www.linkedin.com/in/nathanielwhittemore would lead me to believe Nathaniel is not a "code"/execution person (I could be wrong, obviously).
Whereas the people on the other side of the debate seem to be largely execution guys - coders or self-styled "product" guys (YCombinator, Eric Ries).
It's almost a tautology - the execution guys say the execution is most important, the idea guys think it's all about the idea.
Like most things, the "best" answer probably lies somewhere between the two extremes.