We lost 6 games last year by one score. If we convert 2 of those this year because of better coaching or better play from some of our key playmakers, then we finish 9-7. Yes, I believe we were talented enough last year to have done better than we did.There is no way of knowing yet if the new system will be better than that of Rex and Rob, but there is definitely reason for optimism.
As far as Beane goes, I have heard great things about his ability to evaluate talent, and I am sure he has already started looking at what we currently have, so I hope he is actively involved in the roster creation process.