"I believe the Bears were hoping to slide Barton through waivers and then bring him back to their practice squad, but the Dolphins put in a claim. He was cut Wednesday because the coaching staff was a little nervous about having a seventh-round rookie as the immediate backup at both tackle positions, so he was the casualty once veteran Fred Miller was brought back for depth purposes.
"Had 14th-overall selection Chris Williams not been hurt in training camp, chances are Barton never would have make the 53-man roster for Week 1 in the first place."
Meanwhile, it's what Scout.com said about Barton as he entered the 2008 draft: "Much better suited physically & from an athletic standpoint to play down on the inside. Tough kid with some playing experience. Doesn't kick butt, but also doesn't get his butt kicked. Has a tendency to engage with his hands from the outside the defenders frame & doesn't alway bring his feet with him. Not real effective adjusting to movement off the line of scrimmage. On pass pro, anchored well on his short sets. Problems with speed on the edge."
Barton was projected to be drafted in the fourth or fifth round, but lasted until the seventh.