Let's stop here, I don't get the impression you know anyone whom you are talking about. More likely you watched a rerun of Wolf on Wallstreet.
It is you who think you know everything about Wall Street. Sure you can give OP some advice. Go to build a 15-year track record, and someone WILL hire you. Good luck.
for a guy who worked for lots of Wall Street firms and has so much professional experience, you have a perspective similar to a 20-something retail trader.