Bear in mind that Mr. Jack Welch was once the CEO of GE and it is during his leadership, GE was (and still very much now) the role model for best practices in many fields including innovation, performance culture, leadership and talent management. If you need to refer to a book on what GE is good at, I suggest "The GE Way Fieldbook" by Robert Slater. This is not the only book about GE available at the bookstores... in fact, they are many. But, I can assure you that this is the simplest book that can help and guide you in the implementation. This video is an evidence that leadership plays vital roles in determining how strategic will the role of HR be in the organisation. The outcome is always two sides of a coin depending on how the leadership team behaves.
Here is the link for the video;
Enjoy watching and learning!