Very reasonable post. I'd add that Kody Spano was every bit as heralded nationally as was Green (both were the #9 nationally as dual threat QB's) --- and sure who knows how accurate either assessment was. But my point is Spano is also thought to be really, really good. Green, as good as he may be, is not a lock to start as a redshirt sophomore either --- he must first beat out Spano --- and while most assume that to be a given, well... think again --- Spano may out compete him.
No knock on Green --- he has the potential to be great. But so too does Lee and Spano --- and they are more seasoned, more mature, and more experienced. So, Cody Green has really tough competition to contend with. In 3 years we'll see how he stacks up. This year and next, you will see either nothing from, or little from him. And, that is great --- for as you say, he'll come up slowly in the system and prosper.
Actually Green finished the season as the 6th dual-threat qb prospect, and was a 4 star player, quite a bit more 'heralding' for him than Spano.