New defensive look among the many changes at Louisville this spring

LOUISVILLE, Ky. -- The Louisville team that takes the field in September will be vastly different from the one that left the field in January. In that, there is no coincidence.

One two-hour practice Tuesday revealed how, and why. Heisman Trophy winning quarterback Lamar Jackson took his usual snaps, and had his usual zip on the ball. But he also lined up under center at various points, a skill set he has been working to master all spring.

The goal is to feature a more traditional run game, implement more play-action and vary not only what Jackson can do but what the Cards can do. So there is one big difference. Another? Dae Williams has emerged this spring as a power back who can help carry…