This is a very good slideshare from Graeme Codrington, who is on my list of the top 10 speakers I recommend you should experience. I also recommend signing up for the Tomorrow Today newsletter which always contains great insights into the new world of work.
Graeme's questions on slides 50 - 53 are well worth asking all your employees.
I perhaps differ from Graeme in the sense that nurturing your top talent is only part of your story in my view. The magic is in the middle more often than the top.
Be the difference you want to see in the world.