ALLEN PARK, Mich. -- The Detroit Lions are a little over a week away from the season-opener against the New York Giants, and one starting position remains largely unsettled: right tackle.

Corey Hilliard and LaAdrian Waddle have been competing at the position throughout the preseason. During training camp, they were rotating with the first team every other day. Coach Jim Caldwell was not ready to name a starter at the spot yet, although Hilliard played with the first unit throughout the first half of Friday's preseason game against Jacksonville.

"The guys have been battling for it and doing a great job," Caldwell said. "We haven't named one as of yet and we have a while before our first game. Guys are doing a tremendous job, I think, working and challenging one another, and we'll get a chance to see how they end up."

Earlier this preseason, both Hilliard and Waddle seemed confident they could fit in well with the rest of the offensive line -- in part because they both already had. Both started games at the position for Detroit last season and played well while they were in there.

It is that same reason that Caldwell appears to have confidence in either guy, even if both have struggled at points during the preseason.

"There is a comfort level with them because they both are performers," Caldwell said. "They do a nice job. They perform extremely well. It is a very, very close competition so I think at this point, we would feel very, very good regardless of which one ends up winning that particular job."

Some other notes from Caldwell's 10 minutes with the media:

• DeJon Gomes went on injured reserve with a shoulder injury. Caldwell would not say whether or not Gomes will need surgery on the shoulder and declined to give any other details.

• Caldwell said Reggie Bush has sat out the past two days of practice due to "rest."

• If the Lions keep just two quarterbacks on the roster, they have plans for an emergency quarterback. Caldwell declined to name any of the players who could possibly fill that role. He said Detroit would make it known if the Lions ever needed to reach that point.