The adage in the realm of financial investors states that risk equals reward.
Revisionist history of NFL free agency disputes this.
There are a variety of facets that define an NFL free agent as a risk. A player's bill of health can classify him as a risk, as can off-the-field issues, age and salary-cap ramifications.
Success stories exist, such as the New Orleans Saints taking a risk on Drew Brees, Denver's signing of Peyton Manning, the Eagles signing of Mike Vick—sans this past season—and every team that ever suited up Terrell Owens.
Conversely, Oakland's acquisition of Javon Walker and the Redskins signings of both defensive tackle Albert Haynesworth and the aging Deion Sanders qualify as failed risks.
Who are the risks of the 2013 free-agent class, and why should NFL general managers hesitate from gambling on these players?