Today, for the majority of Ph.D. scientists, that system has failed. No apprentice system ensures that you will emerge from your training with marketable skills—or a job. A Ph.D. plus a postdoc doesn't guarantee that you're ready for any of the jobs that are likely to be available. Today, you have to be "street savvy" about your career.
The street-savvy job seeker takes a great interest in how things work behind the scenes. She optimizes her situation to overcome roadblocks, expected and unexpected. He is purposeful and focused on his career—not just his science. Today's successful job seeker must have a strong sense of personal mission.