Comment Managers (Score 0) 541
There are two kinds of managers out there. There are managers who manage people and there are managers who manage projects. Some positions combine both but not always. From my experience good coders are rarely good at interacting with people, so eventually they are not that good at delegating parts of the projects and end up doing most of the work themselves.
I would personally recommend checking out http://management.about.com/ it is a good resource to start with.