The Detroit Lions have significantly upgraded their cornerback position by trading for Carlton Davis, signing Amik Robertson, and drafting Terrion Arnold and Ennis Rakestraw Jr., alleviating concerns following the loss of Cameron Sutton. Despite improvements, analyst Matt Holder suggests signing former Rams cornerback Ahkello Witherspoon to bolster depth, especially with Emmanuel Moseley's injury. Meanwhile, the Las Vegas Raiders struggled in their season opener against the Chargers, losing 22-10, largely due to a depleted defensive line after injuries to Malcolm Koonce and Tyree Wilson. In response, the Raiders signed former first-round pick K'Lavon Chaisson to enhance their pass rush depth but face skepticism regarding his impact due to inconsistent performance in previous seasons. Analysts recommend exploring additional options like free agent Rasheem Green, particularly if Wilson's injury is serious, to ensure defensive stability moving forward. Both teams are navigating injury challenges as they aim for playoff contention in the 2024 season.