When you watch football games, your eyes naturally turn towards the football and those touching it. Most people watch the quarterback drop back to pass and throw the ball to his intended receiver or watch the running back try and make a big play with the ball in his hands.
However, the quarterback isn’t able to complete the pass to his receivers or running back getting into the open field without the help of the offensive line doing the dirty work that often goes unnoticed. The quarterbacks and running backs do notice though, as they wouldn’t be able to do their jobs and do their jobs well without the line’s efforts.