Logically you are correct but his ego won't let him do it. He will insist on playing QB, even if it means he doesn't play.
He is also a big enough name, even a stained name, that somebody will at least give him a shot as a draft pick in the supplimental draft. But not as high a pick as he expected to go so he will start pouting.
He should ask Eric "New Kids on the Block" Crouch how that worked out for him?