I have never understood why teams needs a kicker and a punter.

Plenty of rugby players can punt as far and as high as Brian Moorman and kick as accurately as Ryan Lindell, or any other kicker or punter.

Why not NFLers?

Discuss.

Another question, are you allowed to dropkick restarts or does it have to be a placekick? Especially for onside kicks a drop kick would be very effective at getting the height and hang time required to allow the kicking team to get under the ball.

Thanks