Many of the activities and strategies we use to innovate and manage are actually road blocks to creativity and innovation. Certainly, the enforcement of a time line and being cost conscience, are important, but only in respect to their appropriate place in the life cycle of a product or service. When applied to the creative and innovative phases in this life cycle, they are disruptive and cause sub-optimization.
Innovation is a creative process that requires open-mindedness and a safe environment. Creativity and innovation are processes that rely upon failure and the ability to learn from failure. You cannot create or innovate where failure is unacceptable or penalized.