To reiterate, greyshirting has 0 impact on leaving for the NFL early. If you're ready to go after three years, you're ready to go after three years. Greyshirt, and redshirt, neither have any impact on that at all. Finally, yes I can. I do not think Saban disrespects Poggi's ability. Furthermore, it's not even clear if Vonn Bell has any sort of an offer. A 5 star player, who has indicated he wanted to play at Alabama, but it appears they lack the room.
I know greyshirting could be abused, somewhat. It's a willing practice, but it could catch a player off guard or the like. It's not a universal sign of disrespect, that's hogwash, it can help players, that's provable, and there are players better off for having been a greyshirt. It's funny how some people can essentially bash Saban and his practices, and some think I have a problem for seeing the logic and good in what Saban does.