With the Dallas Cowboys set to open training camp practices Saturday, here is the latest in a position-by-position look at their roster:
OFFENSIVE LINE
Gone from last season: Charles Brown, Mackenzy Bernadeau
Position coach: Frank Pollack (fourth season with the Cowboys, second as offensive line coach)
Biggest issue: The Cowboys go into training camp knowing their five starters in Smith, Collins, Frederick, Martin and Free, but depth is an issue, especially with Brown's somewhat-surprising decision to retire.