I recently read an article in the April edition of NZ Lawyer, entitled "Managing to lead" by James Holden. He's CEO of Leadership Revolution Pty Ltd. A fuller version of the article (Breeds Apart: Leadership Versus Management) is available directly from their site.
In the corporate jungle there are two creatures at the top of the food chain. The Manager. And the Leader. Both are critical for business success...
...there is an undeniable connection between Leadership and culture that creates sustainable peak performance and long term profitability.
Basically, it states that any business needs both Managers and Leaders - and that currently Managers are dominating through corporate nurturing. Leaders are required though to get the best performance from teams. In the document, there is a small 5 question test that will indicate which direction you lean - makes for interesting reading. I've found that Leadership is something that can never be delegated - some people just choose to stand up and deliver.