-- It's easy to get caught up in the perceived depth chart based on the way Gruden implements reps with different units. That will especially be the case with the running backs group, which will be scrutinized heavily by the coaching staff. It's one of the deepest units on the field, led by veteran Chris Thompson, still getting his legs under him throughout the next week or two. Last year Rob Kelley took the majority of the first-team reps, but rookie Derrius Guice got a solid handful of snaps Thursday, taking handoffs from the gun and catching a few passes during team drills, too. With Samaje Perine, Kapri Bibbs, Byron Marshall and Martez Carter all in the mix, there will be a constant rotation.

-- Because Williams, Moses, Ty Nsekhe and T.J. Clemmings aren't participating in team drills, Geron Christian Sr. and John Kling will benefit with increased reps at tackle. Williams said after practice that it's hard to keep observing after doing so much of it at the end of last season, but is glad he can mentor the younger players as they get more experience.

Defense:

-- Linebacker Zach Brown will be day-to-day with a quad strain, as announced by the team, after he seemed to tweak it during the very early portion of practice. Josh Harvey-Clemons filled in for Brown the remainder of practice.