The NFL roster is constantly evolving and changing form. No team's roster is exactly the same for two consecutive years and, typically, a team's Week 1 roster is almost never the same as its Week 17 roster.
The influx of talent from the NFL draft provides a virtually endless source of fresh competition on an annual basis. As a result, if a veteran slows down or experiences the slightest dip in production, he'll undoubtedly be replaced by younger, hungrier talent.
The NFL is a fierce, unforgiving environment and a shining example of Darwinism.
It's a harsh line of work, but it's an undeniable reality—the young rise to the top and the veterans get devoured at the first sign of weakness.
The Rams have a number of veterans who are nearing the edge of the cliff. It's time for these players to either produce or be replaced by a player who can.
This article will highlight five veteran St. Louis players who must turn heads at training camp no matter what. If these players fail to do that, they'll either be watching the games from the sidelines or, even worse, their sofas.