Please understand that I think Cody Green is a far better passer than the person I will speak of next.
His relaxed running style is very similar to Vince Young. Vince was 6 - 5 / 235 lbs. Cody is an elusive runner and when we he gets in the open field and to top speed with that stride he can cover 7 - 8 yards in two steps.
I'm defiantly not saying Green will be anywhere near Zac Lee knowledge wise with the offense. The point I think you missed is that using Green talents will be a huge benefit for the team now than red shirting him. Teams have done this with there young QB's in the past and it has worked. Team like Florida, VT, Ohio State, and Texas in recent years. Team that will be doing it this Florida, Tennessee, University of Virginia, and Michigan.