@M0hammad It really is important to recognize that sometimes things go our way and other times that don’t. I really suggest you go to BB&N, make the most of it your time there, and go on and kill in college and your future. 10,20, and definitely 30 years from now, I guarantee you that attending Andover instead of BB&N or vice versa will have little to no impact on your future success. They are both incredible schools and, IMO, are both held in very high regard by people who are close to the boarding/private school world.
Ask yourself this–Do you really want to kick off freshman year by starting the application process again? 9th grade is a time when you should put your passion towards ECs and Clubs and other activities in order to become strong at them and hopefully gain leadership positions in the future. Because of the lighter course work in 9th grade compared to the later years of high school, you will have more free time. IMO, it would be more helpful for both your future and your present situation if you put your effort towards excelling at BB&N both academically and in the school community by joining different student groups and fully immersing yourself in the true BB&N experience. Now, lets say you go through the application process again, the interviews, the essays, the testing, the recommendations (from a school where you’ve known the teachers for less than a year, etc.) AND imagine you end up in the same position you are in now with a waitlist or a rejection (I’m not saying it will happen, but I think it is something you should take into consideration). You would have essentially limited your participation at BB&N even though you would end up staying there for 10th grade and on.
Back to the Exeter teacher, I agree with @skieurope when it comes to putting the trustees comments in perspective. As a teacher, I highly doubt that she has much, if any, pull when it comes to admissions. If team coaches have trouble getting some of their flagged applicants in (which I’ve heard has been happening more and more as schools become more selective), it will be close to impossible to bank on that teacher giving you a leg up in the admissions process.
When it comes from transferring from one ‘top’ school to another ‘top’ school. It really depends on the situation. If you can make a genuine case for why you want to go to andover or exeter instead of BB&N (and that would have to be MUCH more than its my first choice) then you may be able to get in. I personally, cannot think of a justification for why a transfer to PA or PEA from BB&N would be necessary or wanted, but thats just me… Now, are there impact athletes who go from one top school to another–absolutely. But, those are usually done because both the school and the athlete benefit from the acceptance. The school gets a top notch player and the athlete is (ideally) on a stronger team.
I’ve said it once, and I’ll say it again, I really think you should go to BB&N with a “this is the school for me” attitude. And if, after putting your heart and sole into loving the school, you find that you really can’t see yourself completing high school there, then by all means apply to all the schools your heart desires.