In almost any change there is 20 - 60 - 20. 20% are doing the change and we need to stay out of their way. 20% will never get there (a large percent still go into banks to see tellers vs. ATMs). 60% are in the middle. I think you will always find some companies where the head of HR is not a member of senior management team (bottom 20% and some companies where she or he has always been (top 20%).
