Long snapper is area safe position, especially with protective rules added some years back. Teams don't have much incentive to bring in a new long snapper very often because they are relatively low earners. Once a long snapper has mastered the technique, he becomes increasingly valuable to the team. His skills don't deteriorate year to year as much as a player who relies on running fast, throwing far or hitting hard.
Adam Smith famously argued that specialization is the key to prosperity. In the N.F.L., the long snapper is proof of that argument. Just in time for the Super Bowl, here’s everything there is to know about a job that didn’t used to exist.