Which is more important: ideas or execution?

This is a good article about how to take an innovation idea forward and the challenges of implementation. 

http://www.pheedo.com/click.phdo?i=31064ba5b5a5e3268650d7a3334f9833

The image of the creative, inspired entrepreneur who sees the future in a different way and develops a breakthrough idea is deeply embedded in business culture. But coming up with the killer idea is only one small part of the battle, according to Vijay Govindarajan and Chris Trimble, authors of the new book, 10 Rules for Strategic Innovators. Where most companies fail at innovation, they contend, is in the area of execution, not idea generation. [Innovation Weblog]