Alex Barron changing form

Offensive tackle Alex Barron, in his first training camp with the Dallas Cowboys, took a noteworthy streak into Monday's afternoon practice. Barron had gone three consecutive practices without a false start. Given Barron's history, that is signfiicant. In five seasons with St. Louis, Barron had 43 false-start penalties in 76 games. Former Cowboys offensive tackle Flozell Adams had 30 false starts in 70 games during the last five seasons. ``I don't knwo what the history was, and I don't want to know,'' offensive line coach Hudson Houck said. ``He's done everything we've asked of him. Hopefully, this guy is just coming on.'' The Cowboys acquired Barron, the 19th overll pick in the 2005 draft, in a deal for linebacker Bobby Carpenter.