ALAMEDA – Rookies have been immersed in the Raiders system most of this month, but still have a lot to learn before training camp begins this summer.
There's significant work ahead this spring during OTAs and mid-June's mandatory minicamp, and young players will do so from the second and third teams. Even the highly touted ones.
First-round draft pick Gareon Conley played slot cornerback with the second unit and outside cornerback on the third during Tuesday's OTA open to the media. It's a position the slick, speedy cover man will vacate posthaste, but the Raiders prefer rookies earn their stripes.
"All of our young guys are going to earn their way," head coach Jack Del Rio said. "We have a good football team. We're going to let them earn their way. We'll let them compete. We're early in the competition, so we'll just go through the offseason and continue to get (Conley) involved and get him reps. These guys will ascend and take their positions as they earn it. We're really happy with the way he's started."
The Raiders didn't feature a single rookie on their first units Tuesday. Second-round safety Obi Melifonwu, fourth-round offensive tackle David Sharpe and middle linebacker Marquel Lee were featured on the second unit.
Here are some other observations from Tuesday's OTA sessions.
-- Del Rio said Marshall Newhouse had the inside track to be the team's starting right tackle. The versatile veteran worked there with the first team, joining a front five otherwise intact from a season ago.
-- Second-year pro Connor Cook, who switched from No. 8 to No. 18 this offseason, ran the second offensive unit. E.J. Manuel worked with the third team.
-- Inside linebacker Ben Heeney worked on a side field with a trainer during Tuesday's practice, as he continues to rehab from surgery to repair an ankle broken early last season. Jelani Jenkins also did side work after practicing on Monday.
Cory James and Tyrell Adams worked with the first unit at inside linebacker.
-- Veteran running back Marshawn Lynch was limited to individual drills for a second straight day as the Raiders ease him back into football activity.
-- Offensive lineman Austin Howard is working his way back from offseason shoulder surgery, and only practice during individual drills.
-- Cornerback Sean Smith had offseason surgery, but was a full participant in Tuesday's session.
-- Third-round defensive tackle Eddie Vanderdoes remains away from the Raiders complex due to an NFL rule preventing players from schools still in session to work with their teams. He won't re-join the squad until training camp. Undrafted rookie Nicholas Morrow is in a similar spot, but will return next week.
-- Edge rusher Shilique Calhoun played last season at 250 pounds, but looks decidedly bigger now. He told the team website he's up to 270 pounds.