FILE - In this Nov. 26, 2008, file photo, Pittsburgh Steelers quarterback Ben Roethlisberger(notes) gives a thumbs-up as he is taken off the field after sustaining a concussion during an NFL football game against the Cleveland Browns in Pittsburgh. At right is Steelers team doctor Joseph Maroon. Roethlisberger plans to play Sunday, Nov. 29, against Baltimore despite sustaining his fourth concussion in four years only last Sunday.

FILE - This is a Nov. 6, 2008, file photo showing Denver Broncos coach Mike Shanahan consulting his playbook during the second quarter of an NFL football game against the Cleveland Browns, in Cleveland. Shanahan has met with the Buffalo Bills to discuss their head coaching vacancy, according to a published report. ESPN.com on Wednesday, Nov. 25, 2009, reported that Bills chief operating officer Russ Brandon traveled to Denver and spent seven hours meeting with Shanahan on Monday night and Tuesday morning.

FILE - This is a Nov. 22, 2009, file photo showing Cleveland Browns head coach Eric Mangini yelling during an NFL game against the Detroit Lions, in Detroit. Mangini says he was frustrated at losing when he suggested the Detroit Lions faked injuries in Sunday's game. During his Wednesday news conference, Mangini expressed regret about his comments, saying he wasn't trying to "shy away from accountability" for losing.

In this photo taken on Sunday, Nov. 22, 2009, Detroit Lions quarterback Matthew Stafford(notes) runs off the field after beating the Cleveland Browns 38-37 in an NFL football game Browns in Detroit. Stafford dislocated left shoulder in the closing moments of Sunday's win. (AP Photo/Carlos Osorio

A Cleveland Browns fan looks on against the Detroit Lions at Ford Field on November 22, 2009 in Detroit, Michigan. Cleveland coach Eric Mangini sparked the ire of Detroit coach Jim Schwartz when he suggested Lions players faked injuries Sunday as a delaying tactic in their 38-37 NFL win over the Browns.

DETROIT, MI - NOVEMBER 22: A Cleveland Browns fan looks on against the Detroit Lions at Ford Field on November 22, 2009 in Detroit, Michigan. The Lions came from behind to defeat the Browns 38-37. (Photo by Joe Robbins/Getty Images)

DETROIT, MI - NOVEMBER 22: Head coach Jim Schwartz of the Detroit Lions looks on against the Cleveland Browns at Ford Field on November 22, 2009 in Detroit, Michigan. The Lions came from behind to defeat the Browns 38-37. (Photo by Joe Robbins/Getty Images)

DETROIT, MI - NOVEMBER 22: Head coach Eric Mangini of the Cleveland Browns congratulates quarterback Brady Quinn(notes) #10 after a touchdown pass against the Detroit Lions at Ford Field on November 22, 2009 in Detroit, Michigan. The Lions came from behind to defeat the Browns 38-37. (Photo by Joe Robbins/Getty Images)

DETROIT, MI - NOVEMBER 22: Louis Delmas(notes) #26 of the Detroit Lions enters the stadium during player introductions before the game against the Cleveland Browns at Ford Field on November 22, 2009 in Detroit, Michigan. The Lions came from behind to defeat the Browns 38-37. (Photo by Joe Robbins/Getty Images)

DETROIT, MI - NOVEMBER 22: Calvin Johnson(notes) #81 of the Detroit Lions tries to catch a pass in the end zone against the Cleveland Browns at Ford Field on November 22, 2009 in Detroit, Michigan. The Lions came from behind to defeat the Browns 38-37. (Photo by Joe Robbins/Getty Images)

DETROIT, MI - NOVEMBER 22: Kevin Smith(notes) #34 of the Detroit Lions celebrates after catching a touchdown pass against the Cleveland Browns at Ford Field on November 22, 2009 in Detroit, Michigan. The Lions came from behind to defeat the Browns 38-37. (Photo by Joe Robbins/Getty Images)

DETROIT, MI - NOVEMBER 22: Matthew Stafford(notes) #9 of the Detroit Lions tries to pass the football before being sacked in the end zone against Jason Trusnik(notes) #93 the Cleveland Browns at Ford Field on November 22, 2009 in Detroit, Michigan. Stafford was called for intentional grounding resulting in a safety for the Browns. The Lions came from behind to defeat the Browns 38-37. (Photo by Joe Robbins/Getty Images)

DETROIT, MI - NOVEMBER 22: Matthew Stafford(notes) #9 of the Detroit Lions runs with the football against the Cleveland Browns at Ford Field on November 22, 2009 in Detroit, Michigan. The Lions came from behind to defeat the Browns 38-37. (Photo by Joe Robbins/Getty Images)

The scoreboard informs at Ford Field during an NFL football game between the Detroit Lions and the Cleveland Browns in Detroit, Sunday, Nov. 22, 2009.

DETROIT, MI - NOVEMBER 22: Gerard Lawson(notes) #30 of the Cleveland Browns celebrates with teammates following a turnover late in the game against the Detroit Lions at Ford Field on November 22, 2009 in Detroit, Michigan. The Lions came from behind to defeat the Browns 38-37. (Photo by Joe Robbins/Getty Images)

DETROIT, MI - NOVEMBER 22: Kevin Smith(notes) #34 of the Detroit Lions runs with the football against Kamerion Wimbley(notes) #95 of the Cleveland Browns at Ford Field on November 22, 2009 in Detroit, Michigan. The Lions came from behind to defeat the Browns 38-37. (Photo by Joe Robbins/Getty Images)

DETROIT, MI - NOVEMBER 22: Matthew Stafford(notes) #9 of the Detroit Lions passes the football while under pressure against the Cleveland Browns at Ford Field on November 22, 2009 in Detroit, Michigan. The Lions came from behind to defeat the Browns 38-37. (Photo by Joe Robbins/Getty Images)

DETROIT, MI - NOVEMBER 22: Josh Cribbs #16 of the Cleveland Browns jumps over a defender while running with the football against the Detroit Lions at Ford Field on November 22, 2009 in Detroit, Michigan. The Lions came from behind to defeat the Browns 38-37. (Photo by Joe Robbins/Getty Images)

DETROIT, MI - NOVEMBER 22: Calvin Johnson(notes) #81 of the Detroit Lions runs with the football after catching a pass against the Cleveland Browns at Ford Field on November 22, 2009 in Detroit, Michigan. The Lions came from behind to defeat the Browns 38-37. (Photo by Joe Robbins/Getty Images)

Detroit Lions quarterback Matthew Stafford(notes) (9) fumbles as Cleveland Browns linebacker David Bowens(notes) grabs his arm in the fourth quarter of an NFL football game in Detroit, Sunday, Nov. 22, 2009. Detroit recovered the ball.

Cleveland Browns wide receiver Joshua Cribbs(notes) sits on the bench in the fourth quarter of an NFL football game against the Detroit Lions in Detroit, Sunday, Nov. 22, 2009. Detroit won 38-37.

Detroit Lions wide receiver Calvin Johnson(notes), top, reaches for a Matthew Stafford(notes) pass in the end zone as Cleveland Browns defensive back Abram Elam(notes) defends in the fourth quarter of an NFL football game in Detroit, Sunday, Nov. 22, 2009. Pass interference was called on the play as time expired in the game. Detroit won 38-37.

DETROIT, MI - NOVEMBER 22: Michael Gaines(notes) #86 of the Cleveland Browns falls into the end zone to score the go ahead touchdown against Vinny Ciurciu(notes) #46 of the Detroit Lions at Ford Field on November 22, 2009 in Detroit, Michigan. The Lions came from behind to defeat the Browns 38-37. (Photo by Joe Robbins/Getty Images)

DETROIT, MI - NOVEMBER 22: Brady Quinn(notes) #10 of the Cleveland Browns looks to pass the football against the Detroit Lions at Ford Field on November 22, 2009 in Detroit, Michigan. The Lions came from behind to defeat the Browns 38-37. (Photo by Joe Robbins/Getty Images)

DETROIT, MI - NOVEMBER 22: Brady Quinn(notes) #10 of the Cleveland Browns looks to pass the football to Michael Gaines(notes) #86 against the Detroit Lions at Ford Field on November 22, 2009 in Detroit, Michigan. The play resulted in a touchdown to put the Browns ahead. The Lions came from behind to defeat the Browns 38-37. (Photo by Joe Robbins/Getty Images)

Detroit Lions kicker Jason Hanson(notes) (4) is lifted by teammate Nick Harris(notes) after kicking a game-winning extra point in an NFL football game against the Cleveland Browns in Detroit, Sunday, Nov. 22, 2009.

Detroit Lions tight end Brandon Pettigrew(notes) , right, catches a one-yard touchdown-reception against the Cleveland Browns in the fourth quarter of an NFL football game in Detroit, Sunday, Nov. 22, 2009. Detroit won 38-37.

Cleveland Browns linebacker David Bowens(notes) sits on the bench against the Detroit Lions in the fourth quarter of an NFL football game in Detroit, Sunday, Nov. 22, 2009. Detroit won 38-37.

Cleveland Browns quarterback Brady Quinn(notes) celebrates throwing a two-yard touchdown to tight end Michael Gaines(notes) against the Detroit Lions in the fourth quarter of an NFL football game in Detroit, Sunday, Nov. 22, 2009.

DETROIT, MI - NOVEMBER 22: Matthew Stafford(notes) #9 of the Detroit Lions passes the football against the Cleveland Browns at Ford Field on November 22, 2009 in Detroit, Michigan. Pass interference was called on the pass as time expired, giving the Lions one last play. The Lions came from behind to defeat the Browns 38-37. (Photo by Joe Robbins/Getty Images)