That’s a fair point. I guess some of us were just responding to K9’s claim that as long as the coaches have studied a player on the practice field, they know how he will perform in a game.
And it does actually happen. I remember that Terrell Owens had bad practice habits, but suddenly turned it on in games. Adam Thielen, Baker Mayfield, Stefon Diggs, , James White are more current players I remember having read that about. Other times it happens to roster bubble players. They haven’t been spectacular in practice, but when they get a chance, they take it. I guess it is something that some players just thrive under game conditions. Probably adrenaline, adrenaline, focus, things like that.