I disagree. At its fundamental core, football is a physically demanding, hard hitting sport. It takes more than being athletically gifted to play in the NFL. You have to have a passion for the sport and LOVE playing it week in and week out (Zach Thomas). Law School can come later (Nick Buoniconti)
I recall reading a quote from Don Shula (In the Miami Herald) after he drafted Marino and he was recalling his 1st conversation with Dan. Marino told him (paraphrasing) 'coach, I just want to be the best QB in the NFL'. Simply stated, un-nuanced.
That's what I want in my franchise QB. Montana, Marino, Kelly, Elway, Favre, Manning, Brady all had/have it.