She works for a punter, she can't say exactly what she does but it must be working because they have been doing it a fair while now.
Maybe something similar to this book https://www.google.com/url?sa=t&source=web&rct=j&url=https://watchingracehorses.com.au/&ved=2ahUKEwj_nozEzpPpAhUW_XMBHcYnBnkQFjAJegQIBRAB&usg=AOvVaw28eJNo0C2U5Fj4hBikZDaL
It's a good read and pretty accurate imo.