Alot of good gouge here... the BGO is here to help, provide guidance and answer questions. Other than a brief introductory email or phone call offfering assistance, you should not expect the BGO to try to maintain contact or coach you through the Admissions process. THIS IS YOUR APPLICATION , NOT MINE. Personally, I place a lot of emphasis on personal responsibility and initiative. While I am happy to answer parent's questions about USNA, and while I recognize every parent wants their children to achieve their goals (I have two daughters myself), I expect my candidates to speak for themselves.
As NavyHoops says, there is little we can do after the Application is submitted. I don't know what it was, but this past year it seems I fielded alot of inquiries from parents asking for their kids status. While BGO's have access to information and can tell whether the Board has reviewed the application and determined the Candidate to be 3Q, we are not supposed to and I do not, provide this information to the Candidate. Keep in mind, there are alot of 3Q candidates that do not get an Appointment, as Admissions usually has to decide which qualified candidate among a MOC slate is admitted.
The process is pretty clear and unless you completely blow the interview the BGO is not likely to make or break your pursuit of an appointment.
I have often wondered about what impact the BGO interview has. I have written some strong interviews for candidates that don't get in, and similary have done lukewarm interviews for people that did get in. My conclusion is that Admissions relies more on the objective criteria than our interviews, but I still believe that the interview is important in a handful of situations, including when the Candidate has something in their background that isn't adequately covered by the normal application, and at extremes --either an extremely good interview or a very poor interview.