Jim Whitehurst of Red Hat talks about the limits of open innovation in this video.
Good food for thought. You need to understand situations where open innovation works and where it may not. Sometimes it may work completely independently, sometimes it may work on the part of the complete innovation cycle. It can be a great source of idea generation where the product has consumers and it can be source where say the product is a software or a service.
Can you identify how is open innovation relevant for your organization?