Good stuff that I know well.
Your obsession with the QB is admirable. However, you fail to understand that these recent Bama and Clemson teams have top players everywhere. Without the Dline Clemson had several years ago they are not in the title game let alone win it. I understand the importance of the QB, and I believe ND will do better than they have in recent years when it comes to recruiting, but there is a total package here that starts with Defense.
I played and I coached, I was fortunate enough to clinic with Saban. And we are not talking a run-of-the-mill BS clinic where every Joe is invited to watch practice. I am talking private access to everything, meetings, and Q&A. The best staff I was able to clinic with was Dantonio's at MSU, who is a Saban disciple. Pat Narduzzi (DC) and Mike Tressel (LB coach - DC at Cincy now). Mattison at UM under Harbaugh was good but not like the MSU guys. When asked what their first concern is when it comes to recruiting all of these guys talk about emphasis at dline and then corners. A great Dline solves a lot of issues naturally. Awesome corners can shut down half the field. At no time did they discount the emphasis of landing a top QB but the point is you have FAR more control over recruiting and landing positions where guys can fit in several ways vs being pigeon holed at QB.
I will admit, I am obviously a D minded guy, and I am not saying you are wrong about the QB position and game changing, TO A DEGREE, and will repeat myself yet again, that we are trending in the right direction and the QB's will come.