BYU history.

His size
His arm
His patience
His vision
His leadership
His "it"

Some have had size (Giff, Marc Wilson, Bosco), some have had arms (McMahon, Beck), leadership (Detmer, Young, McMahon, Bosco, Sark, Hall, Beck), ....some like Taysom can run like a tailback, but I'm not sure we've had a single QB who scores as high in all these areas and has as much potential as Tanner.

He still needs to prove that he can do it, and he still needs to learn some things...but kid was only a freshman.