They could call those staffers that are involved with youth leagues: Youth Development Advisors.
The only reason we aren't treated like golf is we refuse to treat ourselves, or expect others, to treat us the same way as the sport of golf does. The majority of those in golf come from similar backgrounds as those that bowl, but the difference is how our psyche as bowlers is compared to those that are the typical customer base of the golf industry. It's hard to convince someone to put money into something, when even the best in the world at bowling, almost feel shameful to say they bowl for a living when not in the presence of other bowlers.
I've been involved with the highest levels of competition in both golf and bowling, and bowling is much harder at the highest levels, but we'll save that for a different forum as I really don't wish to hi-jack this thread.