I'm working in LD for a large, rapidly growing global tech company with 180,000 employees.  Because of our rapid growth, we're probably behind in implementing some basic HR and leadership practices.  We're implementing a formal feedback process among our senior leaders, and at the same time teaching them more about feedback and the importance of creating a feedback-rich, feedback-safe environment.  They seem enthusiastic about this evolution in our culture, but many of them keep expressing an interest in having access to some case studies about companies in our tech industry who've emphasized feedback and how the evolution to build in more feedback was responded to and ultimately impacted the business.  My company plays in the same space as IBM, Accenture, InfoSystems, Wipro, etc.

Does anyone know of any such case studies available?