The Washington Commanders have made significant strides this offseason, investing heavily in upgrading their defensive front seven through both free agency and the draft. However, the secondary—particularly the cornerback room—has received comparatively little attention, leaving a noticeable gap in the team's defensive rebuild.

Before free agency kicked off, an analysis of 2025 coverage stats painted a concerning picture for the Commanders' cornerbacks. Aside from the now-departed Marshon Lattimore and rookie standout Trey Amos, the rest of the unit allowed yardage at rates well above the league average. This is a glaring weakness for a team looking to compete in a pass-heavy NFL landscape.

The most troubling performer was second-year corner Mike Sainristil, who ranked near the bottom among starting cornerbacks in several key categories: Rate of Yardage Allowed (yards per coverage snap), Touchdown Rate, and yards allowed after the catch (YAC per reception). While his struggles were notable, the rest of the cornerback lineup didn't fare much better and has since been released. The recent re-signing of Antonio Hamilton Sr. adds depth but does little to address the core issues.

Interestingly, despite his coverage woes, Sainristil excelled in pass defense, ranking just outside the top 10% in Interception Rate. Cornerbacks who consistently pick off passes often earn a pass for leaky coverage, but that can be a dangerous mindset. Interceptions are game-changing plays—there's no denying that. But they are also rare events. For context, Rams cornerback Cobie Durant led all NFL cornerbacks with six interceptions last season, but those plays accounted for just 0.6% of his defensive snaps and impacted only 5 of the 20 games he played. Interceptions matter, but judging a cornerback solely on that metric means evaluating less than 1% of their on-field performance.

So, what are cornerbacks doing the rest of the time? They're covering receivers, preventing targets and receptions, and contributing in run support. To truly evaluate a cornerback's impact, we need to look at down-to-down consistency over a full season. That's why this analysis leans heavily on two critical metrics: Rate of Yardage Allowed (yards per coverage snap), which measures a cornerback's ability to contain receiving yardage, and a broader focus on their overall coverage efficiency. For the Commanders, finding a cornerback who can deliver reliable, game-in and game-out performance is essential to completing their defensive transformation.