Peter Drucker - Arguably the best management guru of all
Something interesting I picked up from a Businessweek article on peter drucker who recently expired at the age of 95.
" He taught generations of managers the importance of picking the best people, of focusing on opportunities and not problems, of getting on the same side of the desk as your customer, of the need to understand your competitive advantages, and to continue to refine them. He believed that talented people were the essential ingredient of every successful enterprise"
you can find the whole article here