Brown, who will be 68 by the time next season kicks off, last coached at Texas in 2013, when he was unceremoniously pushed out the door to make room for Nick Saban only for the Longhorns to hire Charlie Strong instead. Texas went 8-4 this year and Brown's final game will be the December 30 Alamo Bowl against Oregon.
Update (Nov. 26, 8:37 a.m.): It appears Mack Brown will indeed replace Larry Fedora at North Carolina.
What's old is new again - reportedly.
Once at Texas, Brown coached a Heisman Trophy victor in Ricky Williams, then another Heisman finalist - Vince Young - led the Longhorns to a 13-0 season in 2005 that ended with a win against USC in a Rose Bowl classic for the national title. He's won two national Coach of the Year awards, was ACC Coach of the Year at UNC in 1996 and was twice named Big 12 Coach of the Year.
Brown, who went 158-48 over 16 years at Texas, coach at UNC for 10 seasons before getting the Texas job and had a record of 69-46-1 with the Heels. Miles and Brown left retirement from the world of college football coaching to rejoin the Power Five ranks in the past two weeks. The announcement is schedule to take place on Tuesday (Nov. 27). Led UNC to two top-10 final rankings and Texas to seven top-10 final rankings. Brown seemed to be content in retirement after a very long coaching career that ended after the 2013 campaign with Texas football.
Brown, of course, coached North Carolina for 10 seasons in the 1980s and 1990s.
Mack Brown has returned to college football following a five-year absence from the sideline. The 2005 team, led by Vince Young, claimed victory over USC; a few years later, the 2009 team fell to Alabama. According to IC, he's now in the process of assembling a staff.