Ordinarily, when you’re talking about players widening their perspectives and seeing the ‘bigger picture’, you’re talking about pretty much anybody but the quarterback. That is the position that, by its nature, has to have a wider perspective, because they have the interact so directly with all of the other pieces, at least on the offensive side of the ball.
Still, when you’re a quarterback and you suddenly have to watch on the sidelines rather than taking every snap of every game, it does provide an opportunity that you ordinarily don’t have—and it’s perhaps one of the reasons that most quarterbacks who become successful coaches have been backups.