The Las Vegas Raiders secondary struggled last season and was one of the defense's weaknesses. It helped the unit become one of the worst passing defenses in the league in almost every metric.
The Raiders didn't seek elite upgrades in the offseason and went for steady veterans. They added Duke Shelly and David Long Jr., both first-time starters last season. Brandon Facyson was also brought back from the Colts, and there are rumors that the team is interested in Marcus Peters.
It didn't do enough to impress the writers at PFF.com. The website did its rankings on the best secondary in the NFL.