Times have changed and for most people the thought of a career for life is no longer an option. In fact Generation Y or Millenniums are known to be incredibly sophisticated as they are growing up in an age of rapid change technology wise. They have seen it all and been exposed to it all since early childhood as computers and internet has been with them since they opened their eyes in this world.
Such employees will hold a job as long as it satisfies their needs and will not hesitate to move for better opportunities to different employers and also across various business sectors throughout the first half of their careers at least.