Miami Dolphins newly acquired free agent Mike Wallace (L) talks to Tony Dungy (R) before the Dolphins NFL/Hall of Fame Game against the Dallas Cowboys in Canton, Ohio August 4, 2013. REUTERS/Aaron Josefczk(UNITED STATES - Tags: SPORT FOOTBALL) 

Former NFL Colts coach Tony Dungy (2nd L), former Tampa Bay Buccaneer Derrick Brooks (4th L), U.S. first lady Michelle Obama (3rd R) and NFL Commissioner Roger Goodell (2nd R) get ready to play flag football with children as part of the first lady's "Let's Move" campaign to fight childhood obesity in New Orleans, September 8, 2010. REUTERS/Cheryl Gerber (UNITED STATES - Tags: POLITICS SPORT EDUCATION HEALTH) 

Former NFL Colts coach Tony Dungy (L), NFL Commisioner Roger Goodell (2nd L), and U.S. first lady Michelle Obama line up with children for a football drill to promote the first lady's "Let's Move" campaign to fight childhood obesity in New Orleans, September 8, 2010. REUTERS/Cheryl Gerber (UNITED STATES - Tags: POLITICS SPORT EDUCATION HEALTH) 

NFL Commisioner Roger Goodell (L), U.S. first lady Michelle Obama and former Colts coach Tony Dungy (R) huddle during flag football with children to promote the first lady's "Let's Move" campaign to fight childhood obesity in New Orleans, September 8, 2010. REUTERS/Cheryl Gerber (UNITED STATES - Tags: POLITICS SPORT EDUCATION HEALTH) 

Former NFL coach Tony Dungy makes remarks about the Philadelphia Eagles signing of player Michael Vick during a news conference at the Eagles practice facility in Philadelphia, Pennsylvania August 14, 2009. REUTERS/Tim Shaffer (UNITED STATES HEADSHOT SPORT FOOTBALL) 

Philadelphia Eagles head coach Andy Reid (L-R) makes remarks as player Michael Vick and former NFL coach Tony Dungy look on during a news conference at the Eagles practice facility in Philadelphia, Pennsylvania August 14, 2009. REUTERS/Tim Shaffer (UNITED STATES SPORT FOOTBALL) 

Newly signed Philadelphia Eagles player Michael Vick (L) speaks as former coach Tony Dungy looks on during a news conference at the Eagles practice facility in Philadelphia, Pennsylvania, August 14, 2009. REUTERS/Tim Shaffer (UNITED STATES SPORT FOOTBALL) 

Indianapolis Colts head coach Tony Dungy takes the field before their AFC Wild Card Round NFL playoff football game against the San Diego Chargers in San Diego, January 3, 2009. REUTERS/Lucy Nicholson (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy carries his son Jordan from the field after beating the Tennessee Titans in their NFL game in Indianapolis December 28, 2008. REUTERS/Brent Smith (UNITED STATES) 

Jacksonville Jaguars head coach Jack Del Rio (L) and Indianapolis Colts head coach Tony Dungy talk prior to their NFL football game in Jacksonville, Florida December 18, 2008. REUTERS/Mark Wallheiser (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy (L) and Detroit Lions head coach Rod Marinelli talk on the field after their NFL football game in Indianapolis December 14, 2008. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy gestures while questioning an official's call during the third quarter of their NFL football game against the Baltimore Ravens in Indianapolis October 12, 2008. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy keeps an eye on the scoreboard in the first half as the Colts defeated the Houston Texans in their NFL football game in Houston October 5, 2008. REUTERS/Richard Carson (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy watches from the sidelines in a game versus the Jacksonville Jaguars during the third quarter of NFL play in Indianapolis, Indiana September 21, 2008. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy watches the game against the Minnesota Vikings in the third quarter of their NFL football game at the Metrodome in Minneapolis September 14, 2008. The Colts won 18-15. REUTERS/Craig Lassig (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy adjusts his headset before their NFL football game against the Chicago Bears in Indianapolis September 7, 2008. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy looks on during the first half of the AFC-NFC Hall of Fame Game against the Washington Redskins in Canton, Ohio August 3, 2008. REUTERS/Aaron Josefczyk (UNITED STATES) 

Indianapolis Colts coach Tony Dungy (L) greets San Diego Chargers coach Norv Turner after their AFC Divisional NFL playoff football game in Indianapolis, Indiana, January 13, 2008. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts' head coach Tony Dungy watches from the sidelines in the second quarter of their AFC Divisional NFL playoff football game against the San Diego Chargers in Indianapolis, Indiana, January 13, 2008. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts' head coach Tony Dungy (L) confers with his quarterback Peyton Manning in the second quarter of their AFC Divisional NFL playoff football game against the San Diego Chargers in Indianapolis, Indiana, January 13, 2008. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts quarterback Peyton Manning (L) greets coach Tony Dungy before their AFC Divisional NFL playoff football game against the San Diego Chargers in Indianapolis, Indiana, January 13, 2008. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy smiles before the start of his team's NFL football game against the Tennessee Titans in Indianapolis December 30, 2007. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy walks on the field before his NFL game against the Houston Texans in Indianapolis December 23, 2007. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy yells out in the second half of their NFL football game against the Oakland Raiders in Oakland, California, December 16, 2007. REUTERS/Kimberly White (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy follows the action from the sidelines during the first quarter of the Colts NFL football game against the Baltimore Ravens in Baltimore, Maryland, December 9, 2007. REUTERS/Joe Giza (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy (L) holds a red flag while complaining to officials Terry McAulay (77) and Rob Vernatchi during the first quarter of their NFL football game against Jacksonville Jaguars in Indianapolis December 2, 2007. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy throws the red flag calling for a review of a Kansas City Chiefs touchdown as Colts quarterback Peyton Manning (18) stands behind him during the third quarter of their NFL football game in Indianapolis November 18, 2007. The play was not overturned. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy signals to his team during the fourth quarter of their NFL football game against the Kansas City Chiefs in Indianapolis November 18, 2007. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy (L) shakes hands with New England Patriots head coach Bill Belichick after their NFL football game in Indianapolis, Indiana November 4, 2007. REUTERS/John Sommers II (UNITED STATES) 

Indianapolis Colts running back Joseph Addai (29) runs for a touchdown against the New England Patriots during the first half of their NFL football game in Indianapolis, Indiana November 4, 2007. Colts head coach Tony Dungy is at left. REUTERS/John Sommers II (UNITED STATES) 

Indianapolis Colts coach Tony Dungy watches his team play the New England Patriots during the first half of their NFL football game in Indianapolis, Indiana on November 4, 2007. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy (L) and New England Patriots head coach Bill Belichick shake hands before their NFL football game in Indianapolis, Indiana November 4, 2007. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy (L) and New England Patriots head coach Bill Belichick shake hands before their NFL football game in Indianapolis, Indiana November 4, 2007. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy (2nd R) calls for a review of a Jacksonville Jaguars' touchdown in the third quarter of their NFL football game in Jacksonville, Florida October 22, 2007 REUTERS/Mark Wallheiser (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy (R) talks with Luke Del Rio, the 13 year-old son of Jacksonville Jaguars head coach Jack Del Rio, prior to their NFL Monday night football game in Jacksonville, Florida October 22, 2007. REUTERS/Mark Wallheiser (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy (L) and Jacksonville Jaguars head coach Jack del Rio greet each other prior to their Monday Night NFL football game in Jacksonville, Florida October 22, 2007. REUTERS/Mark Wallheiser (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy walks the sidelines against the Tampa Bay Buccaneers during the third quarter of their NFL football game in Indianapolis October 7, 2007. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy watches his team play the Denver Broncos during the fourth quarter of their NFL football game in Indianapolis September 30, 2007. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts coach Tony Dungy keeps an eye on the scoreboard during the second half of their NFL game against the Houston Texans in Houston September 23, 2007. REUTERS/Richard Carson (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy looks at the scoreboard during first half NFL football action at LP Field in Nashville, Tennessee September 16, 2007. REUTERS/M. J. Masotti Jr. (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy watches from the sidelines during their NFL football game against the New Orleans Saints in Indianapolis September 6, 2007. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy watches a replay on the stadium monitors during the second quarter against the Cincinnati Bengals in their NFL preseason game at Paul Brown Stadium in Cincinnati, August 31, 2007. REUTERS/John Sommers II (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy walks onto the field to protest an official's call during the second quarter of their NFL preseason football game against the Chicago Bears in Indianapolis August 20, 2007. REUTERS/Brent Smith (UNITED STATES) 

Chicago Bears head coach Lovie Smith (L) greets young Indianapolis Colts fan Aaron Scott (R) of Ft. Wayne, Indiana, presented to him by Indianapolis Colts head coach Tony Dungy before the two teams' NFL preseason football game in Indianapolis August 20, 2007. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy (L) listens to Colts president Bill Polian during practice at the Colts training camp in Terre Haute, Indiana, July 30, 2007. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy (R) watches his team practice on the field during their NFL football training camp in Terre Haute, Indiana July 30, 2007. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy (R) talks while quarterback Peyton Manning stretches on the practice field during NFL football training camp in Terre Haute, Indiana July 30, 2007. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy (R) talks to quarterback Peyton Manning on the practice field during their NFL football training camp in Terre Haute, Indiana July 30, 2007. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts coach Tony Dungy (R) is accompanied by team members as he accepts the award for best team at the "2007 ESPY Awards" in Hollywood July 11, 2007. REUTERS/Phil McCarten (UNITED STATES) 

U.S. President George W. Bush (C) shares a laugh with Indianapolis Colts' quarterback Peyton Manning (L) and head coach Tony Dungy during a ceremony honoring the Super Bowl Champions in the Rose Garden at the White House in Washington April 23, 2007. REUTERS/Jim Young (UNITED STATES) 

U.S. President George W. Bush (R) is presented with a cowboy hat from Indianapolis Colts as head coach Tony Dungy watches during a ceremony honoring the Super Bowl Champions in the Rose Garden at the White House in Washington April 23, 2007. REUTERS/Jim Young (UNITED STATES) 

U.S. President George W. Bush holds an Indianapolis Colts football jersey presented to him by quarterback Peyton Manning (L) as coach Tony Dungy (R) shares a laugh with Bush during a photo opportunity with the 2007 Superbowl winners, the Indianapolis Colts, on the South Lawn of the White House in Washington April 23, 2007. REUTERS/Jason Reed (UNITED STATES) 

U.S. President George W. Bush (C) shares a laugh with Indianapolis Colts' quarterback Peyton Manning (L) and head coach Tony Dungy during a ceremony honoring the Super Bowl Champions in the Rose Garden at the White House in Washington April 23, 2007. REUTERS/Jim Young (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy smiles while standing near the Vince Lombardi Trophy during a rally honoring the Colts' NFL Super Bowl XLI win in Indianapolis February 5, 2007. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts head coach Tony Dungy (L) and Colts owner Jim Irsay ride atop a vehicle while Irsay hoists the Vince Lombardi Trophy during a rally honoring the Colts' NFL Super Bowl XLI win in Indianapolis February 5, 2007. REUTERS/Brent Smith (UNITED STATES) 

Indianapolis Colts' quarterback Peyton Manning (R) hugs his head coach Tony Dungy, while holding the Vince Lombardi Trophy, after defeating the Chicago Bears to win the NFL's Super Bowl XLI football game in Miami, Florida, February 4, 2007. Manning was named MVP of the game. REUTERS/Mike Blake (UNITED STATES) 

Indianapolis Colts' head coach Tony Dungy and his wife Lauren (L) celebrate after defeating the Chicago Bears, to win the NFL's Super Bowl XLI football game in Miami, Florida, February 4, 2007. REUTERS/Mike Segar (UNITED STATES) 

Indianapolis Colts coach Tony Dungy is carried off the field after the Colts defeated the Chicago Bears in the NFL's Super Bowl XLI football game in Miami, Florida, February 4, 2007. REUTERS/Mike Blake (UNITED STATES) 

Indianapolis Colts quarterback Peyton Manning (L) and head coach Tony Dungy congratulate each other after defeating the Chicago Bears to win the NFL's Super Bowl XLI football game in Miami, Florida February 4, 2007. Manning was named MVP of the game. REUTERS/Mike Segar (UNITED STATES) 

Indianapolis Colts coach Tony Dungy (C), his wife Lauren (L) and quarterback Peyton Manning celebrate their win over the Chicago Bears in the NFL's Super Bowl XLI football game in Miami, Florida February 4, 2007. REUTERS/Marc Serota (UNITED STATES)