1. LB Cowboys should avoid: Anthony Barr
Anthony Barr would add an intriguing skillset to the Cowboys defense, but it's not one they currently need. Barr is a linebacker who's known more for his pass-rushing output than his discipline filling gaps against the run.
Dallas has had trouble stopping rushes up the middle this season. Though Christian McCaffrey was held relatively in check on Sunday, the Cowboys' interior defensive line had a rough outing against the 49ers. This team doesn't need another pass-rusher profile.
Barr played in 14 games for the Cowboys last season. He made 58 tackles and notched a sack, but his limitations in coverage were blatant. He was fine overall, but it became clear late in the season that Damone Clark needed to be on the field instead.
It was apparent that the 49ers are faster than the Cowboys (on defense and offense). He might have experience in Dan Quinn's scheme, but adding Barr would make the defense slower and that's the last thing it needs.