Cowboys practice report: Day 2

OXNARD, Calif. -- Here's the Day 2 practice report from Dallas Cowboys training camp:

*The early portions of practice saw several members of the offensive line get pushed to the ground on running plays. We're not talking about the third unit here, the first- and second-teams got knocked around by the Cowboys defense. During a DeMarco Murray run, four linemen hit the ground and two more on the next play, prompting one of the coaches to yell, "Gotta stay up." As the practice moved on, the linemen, especially the interior of the line, got better. However, coach Jason Garrett benched the first-team line after center Travis Frederick botched a snap to Tony Romo. When the line returned a few plays later, another coach yelled, "welcome back."

*One team official said it's early, but after two days of practices, tackle Jermey Parnell is struggling. Last season he shared snaps with Doug Free at right tackle. While Free is having a solid two days of camp, Parnell looks slow getting off the ball and is having trouble defending Kyle Wilber off the edge. Ben Bass, a defensive tackle, slid past Parnell for a sack and he missed a block on a screen pass to Dwayne Harris.

*Rookie wide receiver Terrance Williams got snaps with the first- and second-team units on Monday and was inconsistent. He was wide-open when he dropped a pass from Romo. Someone from the sidelines yelled at Williams for dropping the ball. Williams also dropped a pass on Sunday.

*DeMarcus Ware had three sacks on Monday and is displaying power, speed, and, well, he's just all over the field. He doesn't appear to have any problems in his shoulder, which was operated on in the offseason.

*Jason Hatcher is also off to a strong start of camp; he's getting pressure on the quarterback and at one point on Monday, was being held by two offensive linemen on a pass rush.

*The Cowboys have forced turnovers from the safeties and linebackers but none from the cornerbacks. While Orlando Scandrick knocked a pass away for Dez Bryant on Sunday, Morris Claiborne picked up his first PBU of camp on Monday. Also, Will Allen, a safety, made the play of the day when he took a deep ball out of the hands of wide receiver Miles Austin. Allen appears to be the safety with range the Cowboys have been looking for the past couple of years.

*Hate to beat up on the line again, but when Costa snapped the ball before Kyle Orton was ready for it in the shotgun formation, Garrett said, "that's how you lose."

*Rookie running back Joseph Randle did a good job of concentrating when a ball was tipped by Bass over the middle. Randle snagged it and ran downfield for a nice gain.

*Defensive end Monte Taylor continues to make plays with Tyrone Crawford out. Taylor stopped Lance Dunbar for a tackle for loss in the afternoon session. In the morning practice, he pushed the pocket, forcing Orton to scramble.

*The Cowboys can make a roster move with Crawford when they reduce the roster to 75 on Aug. 27, not when they do it on Aug. 31, the final cut-down day. Dallas will have to keep Crawford on its 90-man roster because the only other move the team can make is releasing him, and the Cowboys don't want to do that. Crawford is a valuable player who will be moved to injured reserve after the Cowboys make a roster move in late August.