No training... you are thrown into the deep-end of the pool. If you survive, it's a Pro.
There is a sparse marketing department that only really feeds the top tier.
You must reinvent yourself annually until you find a niche (again, luck & timing).
Work culture promotes hoarding of work, work credit, and marketing credit.
There is a consistent push to move to management and principle even if the science and research is your core love and talent.
Work/Life Balance is tough if your are married and/or have children.