Manning has four MVPs and all kinds of records, but you think he made “a rookie mistake.” Boy, the lines must be burning up with NFL teams waiting to offer a job to a genius like you.
If he could play that over again, do you think he's make that pass again? Throwing across one's body and trying to fit a pass in like that is something you see new QBs try because they don't realize how quick NFL defenders are. Veterans know better. It's a rookie mistake almost by defition.
He's one of the greatest QBs ever, who make a huge mistake in this case. I suspect he'd agree with that himself.