Steve Spurrier and Lou Holtz should stay by the phone.
Because at the rate this college football coaching carousel is already spinning, athletic directors are escorting in the new hires via DeLorean.
Mack Brown, who hasn't coached since 2013 with Texas, is taking over as North Carolina's head coach again. He guided the Tar Heels from 1988-97. He had back-to-back 10-win seasons in his final two years UNC, but that was two decades ago.
The 67-year-old Brown replaces Larry Fedora.
The other Power 5 coaching hire so far: 65-year-old Les Miles at Kansas.