When I visited the USBC @Arlington my understanding was that the USBC Bowling Academy is the domestic side producing videos, providing lessons/coaching, pro shop, etc, using the on-site ITRC facility. Where players for Team USA and International teams can come and train not just bowling , but they have a extensive physical training center also available. Coaches like Ron R, Carolyn Dorin, Kim Terrell, Steve P. & others work I believe with both the domestic, as well as the International side.
The day I was there both Carolyn Dorin Ballard and Kim Terrell were available for lessons. My impression is who is scheduled to work on a day or days a person schedules lessons will be who you get. I doubt you will get Ron R. as he is primarily the Team USA head coach, but I could be wrong.
If you have the opportunity and the funds for lessons, I believe you won't be disappointed from what I viewed. Kegel in Florida is also another similar training
center for lessons on either a group or private basis. Check out their web-site.
Good Luck.