The NFL can be a very shrewd business. Players are hardly ever guaranteed a roster spot, especially after a losing season like the New Orleans Saints had last year. It is likely some fan favorites and veterans alike could be replaced. Of course, each player is going to have to prove they belong on the field during training camp battles. With only 53 roster spots available for the regular season roster, everyone has to earn their spot nearly every off-season. For the Saints, some key positions such as kicker, punter, wide receiver, running back, and safety will be decided in the upcoming week.