What is the difference between a Body Corporate and a Body Corporate Manager?

What is the difference between a Body Corporate and a Body Corporate Manager?

A Body Corporate is a legal entity that is created upon the establishment of a community titles scheme  (CTS). All lot owners are automatically members of the Body Corporate and can contribute to the Body Corporate and vote at meetings. 

A Body Corporate Manager is engaged by the Body Corporate to aid in carrying out the responsibilities as dictated by legislation.