Denver Broncos coach John Fox, left, and Dallas Cowboys coach Jason Garrett meet on the field after a preseason NFL football game Thursday, Aug. 11, 2011, in Arlington, Texas. Dallas won 24-23. (AP Photo/Tony Gutierrez)

Dallas Cowboys celebrate Dwayne Harris' 13-yard touchdown as Denver Broncos linebacker Braxton Kelley gets up during the fourth quarter of a preseason NFL football game Thursday, Aug. 11, 2011, in Arlington, Texas. The Cowboys won 24-23. (AP Photo/Tony Gutierrez)

Dallas Cowboys wide receiver Dwayne Harris scores on 13-yard touchdown reception as Denver Broncos linebacker Mike Mohamed defends during the fourth quarter of a preseason NFL football game Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Tony Romo, quarterback de los Cowboys de Dallas cambia la jugada en la línea frente a los Broncos de Denver en el primer cuarto del encuentro del jueves 11 de agosto de 2011, en Arlington, Texas. (Foto AP/Tony Gutierrez)

Dallas Cowboys tight end Martin Rucker, right is lifted by Kevin Kowalski after making a 2-point conversion during the final seconds to give the Cowboys a 24-23 over the Denver Broncos in a preseason NFL football game Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys tight end Martin Rucker makes a 2-point conversion between Denver Broncos cornerback Nate Jones (33) and Cassius Vaughn (41) during an NFL preseason football game Thursday, Aug. 11, 2011, in Arlington, Texas. The Cowboys won 24-23. (AP Photo/LM Otero)

Dallas Cowboys wide receiver Dwayne Harris, bottom, scores a 13-yard touchdown as Denver Broncos linebacker Braxton Kelley makes a tackle during the fourth quarter of a preseason NFL football game Thursday, Aug. 11, 2011, in Arlington, Texas. The Cowboys won 24-23. (AP Photo/LM Otero)

Denver Broncos, including quarterback Brady Quinn, second from right, celebrate an eight-yard touchdown pass to Eron Riley (13) against the Dallas Cowboys during the fourth quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

RETRANSMISSION FOR ALTERNATE CROP - Dallas Cowboys wide receiver Dwayne Harris makes a 76-yard touchdown as Denver Broncos safety Darcel McBath follows during the fournt quarter of a preseason NFL football game Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys wide receiver Dwayne Harris, right, makes a 76-yard touchdown as Denver Broncos safety Darcel McBath (31) follows during the fourth quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Denver Broncos celebrate running back Jeremiah Johnson's 13-yard touchdown against the Dallas Cowboys during the fourth quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Denver Broncos running back Jeremiah Johnson, right, scores a 13-yard touchdown as he is pursued by Dallas Cowboys cornerback Ross Weaver (25) during the fourth quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Denver Broncos running back Jeremiah Johnson scores a 13-yard touchdown against the Dallas Cowboys during the fourth quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Denver Broncos running back Jeremiah Johnson scores a 13-yard touchdown as he is pursued by Dallas Cowboys cornerbacks Ross Weaver (25) and Alex Ibiloye (38) during the fourth quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Denver Broncos quarterback Brady Quinn goes down as he hands off the ball to Daniel Fells against the Dallas Cowboys during the third quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys wide receiver Raymond Radway, left, scores a touchdown from a six-yard pass by quarterback Stephen McGee as Denver Broncos cornerback Nate Jones. right, looks on in the third quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Denver Broncos quarterback Tim Tebow (15) is tackled by Dallas Cowboys linebacker Victor Butler during the second quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys safety Akwasi Owusu-Ansah, top, breaks a tackle by Denver Broncos cornerback Perrish Cox during the second quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Denver Broncos safety Kyle McCarthy, right, tackles Dallas Cowboys wide receiver Jesse Holley during the second half of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys defensive end Clifton Geathers, behind, sacks Denver Broncos quarterback Tim Tebow (15) during the second quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys linebacker Kenwin Cummings reacts with Brandon Williams after tackling Denver Broncos cornerback Cassius Vaughn during the second quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Denver Broncos quarterback Tim Tebow, right, breaks a tackle by Dallas Cowboys linebacker Victor Butler during the second quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Aug11, 2011; Arlington, TX, USA; Denver Broncos quarterback Tim Tebow (15) scrambles in the second quarter against the Dallas Cowboys at Cowboys Stadium. Mandatory Credit: Matthew Emmons-US PRESSWIRE

Dallas Cowboys defensive end Clifton Geathers, left, sacks Denver Broncos quarterback Tim Tebow during the second quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Dallas Cowboys linebacker Kenwin Cummings, right, reacts with Brandon Williams after tackling Denver Broncos cornerback Cassius Vaughn during the second quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Aug 11, 2011; Arlington, TX, USA; Dallas Cowboys running back Felix Jones (28) carries the ball against the Denver Broncos at Cowboys Stadium. Mandatory Credit: Tim Heitman-US PRESSWIRE

Aug 11, 2011; Arlington, TX, USA; Denver Broncos running back Knowshon Mereno (27) is tackled by Dallas Cowboys line backer Sean Lee (50) during the game at Cowboys Stadium. Mandatory Credit: Tim Heitman-US PRESSWIRE

Aug 11, 2011; Arlington, TX, USA; Denver Broncos quarterback Kyle Orton (8) rolls out to pass against the Dallas Cowboys at Cowboys Stadium. Mandatory Credit: Tim Heitman-US PRESSWIRE

Aug11, 2011; Arlington, TX, USA; Denver Broncos running back Willis McGahee (23) runs with the ball in the first quarter against the Dallas Cowboys at Cowboys Stadium. Mandatory Credit: Matthew Emmons-US PRESSWIRE

Dallas Cowboys linebacker Victor Butler (57) gets up after tackling Denver Broncos quarterback Tim Tebow during the second quarter of a preseason NFL football game Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Denver Broncos running back Lance Ball (35) is tackled by Dallas Cowboys linebacker Victor Butler (57) and cornerback Bryan McCann (37) during the second quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Denver Broncos quarterback Tim Tebow, left, helps Dallas Cowboys defensive end Jason Hatcher put his helmet back on during the second quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys quarterback Tony Romo (9) calls a play against the Denver Broncos during the first quarter of a preseason NFL football game Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Dallas Cowboys placekicker David Buehler, top, watches his first-quarter field goal against the Denver Broncos during the first quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. Mat McBriar is the holder. (AP Photo/LM Otero)

As Denver Broncos punter Britton Colquitt holds the ball, placekicker Matt Prater, top, boots a field goal against the Dallas Cowboys during the first quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Denver Broncos quarterback Kyle Orton looks to pass as Dallas Cowboys defensive end Igor Olshansky defends. during the first quarter of a preseason NFL football game on Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Denver Broncos quarterback Tim Tebow throws during warm-ups before a preseason NFL football game against the Dallas Cowboys Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys quarterback Tony Romo, left, and Denver Broncos quarterback Tim Tebow talk before a preseason NFL football game Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

A member of the Dallas Cowboys cheerleaders performs during a preseason NFL football game against the Denver Broncos Thursday, Aug. 11, 2011, in Arlington, Texas. The Cowboys won 24-23. (AP Photo/Tony Gutierrez)

Dallas Cowboys cheerleader dances during a preseason NFL football game Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys wide receiver Dez Bryant (88) during a preseason NFL football game against the Denver Broncos Thursday, Aug. 11, 2011, in Arlington, Texas. The Cowboys won 24-23. (AP Photo/Tony Gutierrez)

Dallas Cowboys quarterback Tony Romo (9) during a preseason NFL football game against the Denver Broncos Thursday, Aug. 11, 2011, in Arlington, Texas. The Cowboys won 24-23. (AP Photo/Tony Gutierrez)

Denver Broncos quarterback Tim Tebow passes the ball against the Dallas Cowboys during the second quarter of a preseason NFL football game Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys quarterback Stephen McGee, left, and Denver Broncos quarterback Tim Tebow talks after a preseason NFL football game Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys quarterback Stephen McGee looks to pass against the Denver Broncos during a preseason NFL football game Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Denver Broncos head coach John Fox during a preseason NFL football game Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Denver Broncos quarterback Tim Tebow (15) during a preseason NFL football game against the Dallas Cowboys Thursday, Aug. 11, 2011, in Arlington, Texas. The Cowboys won 24-23. (AP Photo/Tony Gutierrez)

Dallas Cowboys head coach Jason Garrett during a preseason NFL football game against the Denver Broncos Thursday, Aug. 11, 2011, in Arlington, Texas. The Cowboys won 24-23. (AP Photo/Tony Gutierrez)

Dallas Cowboys quarterback Stephen McGee (7) during a preseason NFL football game Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys running back Felix Jones (28) during a preseason NFL football game against the Denver Broncos Thursday, Aug. 11, 2011, in Arlington, Texas. The Cowboys won 24-23. (AP Photo/Tony Gutierrez)

Denver Broncos quarterback Kyle Orton (8) during a preseason NFL football game against the Dallas Cowboys Thursday, Aug. 11, 2011, in Arlington, Texas. The Cowboys won 24-23. (AP Photo/Tony Gutierrez)

Denver Broncos head coach John Fox and quarterback Tim Tebow talk on the sideline during a preseason NFL football game against the Dallas Cowboys Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys tight end Martin Rucker celebrates against the Denver Broncos at the end of a preseason NFL football game Thursday, Aug. 11, 2011, in Arlington, Texas. (AP Photo/Tony Gutierrez)