There are No Born Managers
Source: Journal of Accountancy
Even those with inherent management talent need training to become effective managers. People with experience in the department they may come to manage have a big advantage in knowing the business before they become managers.
These people need to be identified and nurtured, and they should take management workshops and classes.
For the complete article, see http://www.aicpa.org/pubs/jofa/jan2005/gbi.htm