What is a 'center'?
The center is equivalent to the quarterback on the offensive line. He has the ball in his hands every single play, so it's his responsibility to not only get the snap, no protections, know which play is going to be run, know where the ball's being run, but also to make checks at the line. If you ever notice in a game, you see a lot of centers pointing out who's where. What he's doing is identifying where the middle linebacker is, so we can get protection and also run the plays. So the center is definitely the most important lineman on the field.