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The most important part of Dallas' efforts on offense came in the first quarter when Romo and his first team players tore up the Rams defense.
Unfortunately, the team saw little success when the more-familiar faces checked out of the game.
Dallas' backups allowed the Rams an opportunity to tie the game late and looked far less impressive than the guys ahead of them on the depth chart.
Rudy Carpenter entered the game for Dallas to finish up quarterbacking duties, and he showed some legs on the first drive. Dallas' fourth QB of the night ran for a first down, only to see the play called back due to a holding penalty.
Overall though, Carpenter struggled in this outing. Three passes within his first two drives could have easily been intercepted—in fact, they probably would have been by St. Louis' first-team personnel.
With the rushing game again seeing little action, the grade for this quarter relies a lot on Carpenter's lackluster performance.
Stephen McGee entered the game to start the quarter, making his presence felt with a first-down throw to James Hanna. He commanded the offense decently, posting 52 yards on four completions on six attempts.
The running game was put on the back burner a bit here, but the Cowboys need to see what they have in McGee and whether he deserves a roster spot. No points for the unit doesn't help the quarterback's cause, but he could have looked worse.
With Romo leaving the game at the start of the second quarter, the Dallas offense went downhill.
Backup QB Kyle Orton came into the game, and was unable to generate anything on the first drive. The second possession was no more encouraging, as the unit went three and out, ending with a short pass to Phillip Tanner.
The third and final drive of the quarter started inside Dallas' five-yard line but made it all the way into Rams territory, leading to another Dan Bailey field goal. Orton provided some decent highlights, connecting with five different receivers on the possession.
The offense as a whole looked solid to start the contest, due in great part to the Rams struggles to contain running back DeMarco Murray.
In turn, the running attack opened up the passing game for Dallas.
The Cowboys were able to get 26 yards on the ground from Murray on five carries as well as two catches for 16 yards. Thanks to the running of Murray and Felix Jones, Romo found Dwayne Harris on two scoring strikes and threw for almost 200 yards in his brief stint.