SAN ANTONIO -- The Cowboys signed several of their free agents and grabbed Cleveland's Abram Elam, coming to terms on a one-year contract worth $2.5 million per season on Wednesday night.

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But the Cowboys are not done.

"No we're not," owner/general manager Jerry Jones said Thursday afternoon on 103.3 FM. "We potentially have some things we want to do."

Jones wouldn't get into specifics, but there could be concern at cornerback with Terence Newman out for a month with a pulled groin and the offensive line being so young. The Cowboys also have little experience in the backup wide receiver positions.

In the first week here at camp, the Cowboys expressed confidence in their younger players, especially the second-year ones. Rob Ryan praised safety Barry Church on Thursday.

The Cowboys have always said they are willing to upgrade the roster, which explains why they went after cornerback Nnamdi Asomugha, only to see him sign with the Philadelphia Eagles.

"I think Lonyae Miller has done a really nice job," Jason Garrett said when asked about who he's liked at camp. "Martellus Bennett has done a really nice job, and I think the young offensive linemen who've gotten a lot of snaps who have never seen our system before and now they're in there trying to block these really good defensive players in a fairly complex scheme. I think they've done a really nice job."