Casey Hayward has practiced every day this summer after missing 14 games last season due to a severely strained hamstring. That’s the good news. The not so good news is how the former Vanderbilt star has performed in those practices. Whether it’s rust (hopefully) or the lingering aftereffects of the injury, Hayward simply isn’t covering the way he did in 2012, when he was far and away the best defensive back on the team and finished third in the rookie of the year voting. According to my guys at camp, his reactions seem a split-second slower and he doesn’t look quite as quick. And while there’s still time for Hayward to regain his past form, this is definitely something worth watching. The defense, already suspect at end and inside linebacker, can’t afford to have its best slot corner being outplayed on some days by safety Micah Hyde and journeyman Jarrett Bush.