BYU players works out during an NCAA football practice, Wednesday, Aug. 12, 2015, in Provo, Utah. BYU running back Jamaal Williams withdrew from the school last week due to personal reasons. The offense must now adjust without their most talented running back. (AP Photo/Rick Bowmer)

Connecticut quarterback Tim Boyle throws during an NCAA college football practice, Wednesday, Aug. 12, 2015, in Storrs, Conn. (AP Photo/Jessica Hill)

Connecticut quarterback Bryant Shirreffs calls out to his team during an NCAA college football practice, Wednesday, Aug. 12, 2015, in Storrs, Conn. (AP Photo/Jessica Hill)

Connecticut head coach Bob Diaco gestures during an NCAA college football practice, Wednesday, Aug. 12, 2015, in Storrs, Conn. (AP Photo/Jessica Hill)

BYU quarterback Taysom Hill passes during an NCAA football practice, Wednesday, Aug. 12, 2015, in Provo, Utah. BYU running back Jamaal Williams withdrew from the school last week due to personal reasons. The offense must now adjust without their most talented running back. (AP Photo/Rick Bowmer)

Connecticut quarterback Bryant Shirreffs, left, locks hands with wide receiver Noel Thomas at the end of an NCAA college football practice, Wednesday, Aug. 12, 2015, in Storrs, Conn. (AP Photo/Jessica Hill)

North Carolina defensive coordinator Gene Chizik responds to a question during the team's NCAA college football media day in Chapel Hill, N.C., Wednesday, Aug. 12, 2015. (AP Photo/Gerry Broome)

Connecticut quarterback Tim Boyle throws during an NCAA college football practice, Wednesday, Aug. 12, 2015, in Storrs, Conn. (AP Photo/Jessica Hill)

Nebraska defensive end Jack Gangwish (95) stands amongst teammates during NCAA college football practice in Lincoln, Neb., Tuesday, Aug. 11, 2015. (AP Photo/Nati Harnik)

Nebraska defensive end Jack Gangwish, right, and Nebraska defensive end Freedom Akinmoladun (91) participate in a drill during NCAA college football practice in Lincoln, Neb., Tuesday, Aug. 11, 2015. (AP Photo/Nati Harnik)

North Carolina wide receiver Ryan Switzer is interviewed during the team's NCAA college football media day in Chapel Hill, N.C., Wednesday, Aug. 12, 2015. (AP Photo/Gerry Broome)

Nebraska quarterback AJ Bush, left, hands the ball off to running back Imani Cross during NCAA college football practice in Lincoln, Neb., Tuesday, Aug. 11, 2015. (AP Photo/Nati Harnik)

Nebraska linebacker Brad Simpson, left, and linebacker Tyrin Ferguson (43) go through a drill during NCAA college football practice in Lincoln, Neb., Tuesday, Aug. 11, 2015. (AP Photo/Nati Harnik)

Oklahoma quarterbacks Connor McGinnis, left, and Baker Mayfield, right, throw during an Oklahoma NCAA college football practice in Norman, Okla., Monday, Aug. 10, 2015. (AP Photo/Sue Ogrocki)

Oklahoma wide receiver Eric DeLay catches a pass during an Oklahoma NCAA college football practice in Norman, Okla., Monday, Aug. 10, 2015. (AP Photo/Sue Ogrocki)

Oklahoma running back Joe Mixon catches a pass during an Oklahoma NCAA college football practice in Norman, Okla., Monday, Aug. 10, 2015. (AP Photo/Sue Ogrocki)

Tulsa defensive end Derrick Alexander answers questions during an interview at the team's NCAA college football media day, Tuesday, Aug. 11, 2015, in Tulsa, Okla. (AP Photo/Sue Ogrocki)

Michigan State linebacker Riley Bullough is interviewed during the team's NCAA college football media day, Monday, Aug. 10, 2015, in East Lansing, Mich. (AP Photo/Al Goldis)

Iowa State quarterback Sam Richardson throws a pass during NCAA college football practice, Friday, Aug. 7, 2015, in Ames, Iowa. (AP Photo/Charlie Neibergall)

Iowa State wide receiver Quenton Bundrage runs from linebacker Jordan Harris, left, after catching a pass during NCAA college football practice, Friday, Aug. 7, 2015, in Ames, Iowa. (AP Photo/Charlie Neibergall)

Kentucky's head coach Mark Stoops and players watch as a group of teammates have their photo taken during the annual NCAA college football media day at Commonwealth Stadium in Lexington, Ky., Friday, Aug. 7, 2015. (AP Photo/ David Stephenson)

Alabama coach Nick Saban shows runs drills with the players during an NCAA college football practice, Thursday, Aug. 6, 2015, in Tuscaloosa, Ala. (AP Photo/Brynn Anderson)

Miami players run during an NCAA college football practice, Friday, Aug. 7, 2015, in Coral Gables, Fla. The team is not bothered by a national perception that they will struggle this season. (AP Photo/Joe Skipper)

Minnesota quarterback Mitch Leidner (7) drops back for a pass during NCAA college football training camp in Minneapolis Friday, Aug. 7, 2015. (AP Photo/Ann Heisenfelt)

Minnesota wide receiver Melvin Holland Jr. (21) takes part in a drill during NCAA college football training camp in Minneapolis Friday, Aug. 7, 2015. (AP Photo/Ann Heisenfelt)

Minnesota defensive back Briean Boddy-Calhoun dives to block the ball during NCAA college football training camp in Minneapolis Friday, Aug. 7, 2015. (AP Photo/Ann Heisenfelt)

Oklahoma State quarterbacks Mason Rudolph (2) and J.W. Walsh (4) throw during practice Thursday, Aug. 6, 2015, in Stillwater, Okla. (AP Photo/Sue Ogrocki)

In this Thursday, Aug. 6, 2015 photo, Oklahoma State defensive end Emmanuel Ogbah stretches during a practice in Stillwater, Okla. (AP Photo/Sue Ogrocki)

Miami head coach Al Golden speaks with wide receiver Rashawn Scott during an NCAA college football practice, Friday, Aug. 7, 2015, in Coral Gables, Fla. The team is not bothered by a national perception that they will struggle this season. (AP Photo/Joe Skipper)

Notre Dame players loosen up during practice at an NCAA football training camp Friday, Aug. 7, 2015, in Culver, Ind. (AP Photo/Joe Raymond)

Alabama's offensive coordinator Lane Kiffin leads the quarterbacks to run throwing drills with other quarterbacks during an NCAA college football practice, Thursday, Aug. 6, 2015, in Tuscaloosa, Ala. (AP Photo/Brynn Anderson)

Minnesota wide receiver Desmond Gant carries the ball in a drill during NCAA college football training camp in Minneapolis Friday, Aug. 7, 2015. (AP Photo/Ann Heisenfelt)

Penn State quarterback Christian Hackenberg looks to pass in a drill during the NCAA college football team's practice, Thursday, Aug. 6, 2015, in State College, Pa. (AP Photo/Keith Srakocic)

Nebraska wide receiver De'Mornay Pierson-El, left, makes a catch during NCAA college football practice in Lincoln, Neb., Thursday, Aug. 6, 2015. (AP Photo/Nati Harnik)

Minnesota quarterback Mitch Leidner drops back for a pass during NCAA college football training camp in Minneapolis Friday, Aug. 7, 2015. (AP Photo/Ann Heisenfelt)

Members of the Penn State football team walk onto the field at Beaver Stadium during the NCAA football team's annual media day, Thursday, Aug. 6, 2015 in State College, Pa. (AP Photo/Keith Srakocic)

Alabama defensive lineman Johnny Dwight, left, and tight end O.J. Howard run drills during an NCAA college football practice, Thursday, Aug. 6, 2015, in Tuscaloosa, Ala. (AP Photo/Brynn Anderson)

Vanderbilt's Darrius Sims (6) runs against safety Andrew Williamson (32) during NCAA college football practice Thursday, Aug. 6, 2015, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Alabama defensive lineman Johnny Dwight jumps to catch the ball during NCAA college football practice, Thursday, Aug. 6, 2015, in Tuscaloosa, Ala. (AP Photo/Brynn Anderson)

Nebraska quarterback AJ Bush (6) throws during NCAA college football practice in Lincoln, Neb., Thursday, Aug. 6, 2015. (AP Photo/Nati Harnik)

Alabama quarterbacks, from left, David Cornwell, Cooper Bateman, Jake Coker and Alec Morris, runs drills with other quarterbacks during NCAA college football practice, Thursday, Aug. 6, 2015, in Tuscaloosa, Ala. (AP Photo/Brynn Anderson)

Minnesota running back Jeff Jones catches a pass during NCAA college football training camp in Minneapolis Friday, Aug. 7, 2015. (AP Photo/Ann Heisenfelt)

The offensive linemen for Penn State use large inflated balls in a drill during the NCAA college football team's practice, Thursday, Aug. 6, 2015, in State College, Pa. (AP Photo/Keith Srakocic)

Alabama coach Nick Saban, right, shows linebacker Shaun Dion Hamilton a play during NCAA college football practice, Thursday, Aug. 6, 2015, in Tuscaloosa, Ala. (AP Photo/Brynn Anderson)

Michigan Michigan head coach Jim Harbaugh, center left, sit with his players in Michigan Stadium for a team photo, during the NCAA college football team's annual media day in Ann Arbor, Mich., Thursday, Aug. 6, 2015. (AP Photo/Tony Ding)

Michigan head coach Jim Harbaugh, left, gives his socks to running back Drake Johnson, right, before a team photo during the NCAA college football team's annual media day in Ann Arbor, Mich., Thursday, Aug. 6, 2015. (AP Photo/Tony Ding)

Iowa State head coach Paul Rhoads speaks during Iowa State's annual NCAA college football media day, Thursday, Aug. 6, 2015, in Ames, Iowa. (AP Photo/Charlie Neibergall)

Penn State's Christian Hackenberg (14) sits with fellow quarterback Billy Fessler (16) and Trace McSorley (9) during the NCAA football team's annual media day, Thursday, Aug. 6, 2015 in State College, Pa. (AP Photo/Keith Srakocic)

Florida NCAA college football player Keanu Neal (42) crosses his eyes as he poses with teammates Kylan Johnson (26), rear, and Nick Washington (8) during the teams media day in Gainesville, Fla., Wednesday, Aug. 5, 2015. (AP Photo/Phil Sandlin)

Georgia running back Nick Chubb (27) runs a drill during NCAA college football practice, Tuesday, Aug. 4, 2015, in Athens, Ga. (AP Photo/John Bazemore)

Miami defensive lineman Al-Quadin Muhammad (8) runs drills with his teammates during NCAA college football practice, Thursday, Aug. 6, 2015, in Coral Gables, Fla. The latest effort toward rebuilding, reshaping and rebranding the Hurricanes started more than seven months ago and the next four weeks of training camp will be a culmination of those efforts. (AP Photo/Lynne Sladky)

Iowa State wide receiver D'Vario Montgomery catches a pass during Iowa State's annual NCAA college football media day, Thursday, Aug. 6, 2015, in Ames, Iowa. (AP Photo/Charlie Neibergall)

Michigan quarterbacks Zach Gentry (10), Shane Morris (7), and Jake Rudock (15) pose for a photo in Michigan Stadium during the NCAA college football team's annual media day in Ann Arbor, Mich., Thursday, Aug. 6, 2015. (AP Photo/Tony Ding)

North Carolina State's Matthew Dayes (21) runs drills during the team's first NCAA college football practice of the season in Raleigh, N.C., Tuesday, Aug. 4, 2015. (AP Photo/Gerry Broome)

North Carolina State quarterback Jacoby Brissett looks to pass during the team's first NCAA college football practice of the season in Raleigh, N.C., Tuesday, Aug. 4, 2015. (AP Photo/Gerry Broome)

Auburn quarterback Jeremy Johnson (6) makes a catch during an NCAA college football practice, Tuesday, Aug. 4, 2015, in Auburn, Ala. (AP Photo/Brynn Anderson)

North Carolina quarterback Marquise Williams, left, takes a snap during the team's first NCAA college football practice of the season in Chapel Hill, N.C., Monday, Aug. 3, 2015. (AP Photo/Gerry Broome)

Georgia tight end Jordan Davis (85) breaks free after a catch during a college football practice Tuesday, Aug. 4, 2015, in Athens, Ga. (AP Photo/John Bazemore)

Auburn's defensive coordinator Will Muschamp screams at a player during an NCAA college football practice, Tuesday, Aug. 4, 2015, in Auburn, Ala. (AP Photo/Brynn Anderson)

Georgia defensive back Malkom Parrish (14) breaks up a pass intended for Jared Chapple during a college football practice Tuesday, Aug. 4, 2015, in Athens, Ga. (AP Photo/John Bazemore)

Georgia quarterback Brice Ramsey hands off during a college football practice Tuesday, Aug. 4, 2015, in Athens, Ga. (AP Photo/John Bazemore)

Georgia Bulldogs running back Nick Chubb (27) works during a college football practice Tuesday, Aug. 4, 2015, in Athens, Ga. (AP Photo/John Bazemore)

LSU quarterback Brandon Harris (6) works out during their NCAA college football practice in Baton Rouge, La., Friday, Aug. 7, 2015. Behind is quarterback Brad Kragthorpe (16). (AP Photo/Gerald Herbert)

LSU head coach Les Miles watches during their NCAA college football practice in Baton Rouge, La., Friday, Aug. 7, 2015. (AP Photo/Gerald Herbert)

LSU safety Jalen Mills (28) works out during their NCAA college football practice in Baton Rouge, La., Friday, Aug. 7, 2015. (AP Photo/Gerald Herbert)