The San Francisco 49ers are beginning training camp with an evolving defensive approach under defensive coordinator Raheem Morris. For much of coach Kyle Shanahan’s tenure, the team has generally used an aggressive four-man front paired with zone coverage in the secondary. Early camp work indicates the defense is incorporating “new wrinkles,” though the exact look and impact of the changes are still developing. Both outlets describe the adjustments as part of a broader effort to refresh how the defense operates, while acknowledging that it is too early to judge how different the unit will appear once regular-season games begin. The 49ers’ preparation is therefore focused on translating the early scheme adjustments into consistent execution and performance. Whether the new defensive concepts lead to measurable improvement remains the central question heading into the season.