The Dallas Cowboys addressed two of their primary off-season needs Wednesday on the second day of the free agency period by upgrading their secondary while nabbing a veteran backup quarterback.

The top-free agent cornerback on the market in Brandon Carr agreed to a five-year deal, while quarterback Kyle Orton agreed to a three-year deal to by Tony Romo’s backup. Both played in Kansas City last season.

Dallas also announced the signings of offensive lineman Mackenzy Bernadeau from the Carolina Panthers to a four-year deal, and fullback Lawrence Vickers from Houston for two years.

Carr’s deal is for five-years and is believed to exceed the $50 million mark. His deal comes a day after the team released nine-year starter Terence Newman, saving some $6 million against the salary cap for 2012.

He will take over the left cornerback job, playing opposite Mike Jenkins in a coverage group that also includes Orlando Scandrick. All three cornerbacks are entering their fifth season in the NFL.

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