All offseason long, the Atlanta Falcons have preached the art of competition all across their roster. The Trey Sermon signing set the Falcons' RB3 competition ablazeThe 27-year-old has been around the block as a journeyman. Unless the Falcons want to roster four running backs, they're going to have to make a decision. Carter has the benefit of experience, but this new regime willingly brought in Jones, Goodson, and Sermon as free agents this offseason. Instead of three running backs in the mix in the Falcons' RB3 battle, there's now four, so the Trey Sermon signing is definitely going to spark some late-summer chaos as a new challenger for the job.