Never-ending coaching carousel radically altering sport’s landscape

College football history tends to conveniently divide itself by decade.

When we think of the ’80s, we think of Jimmy Johnson’s Miami Hurricanes and Barry Switzer’s Oklahoma Sooners. When we think of the ’90s, we think of Florida State’s dominance, Nebraska’s national titles and Steve Spurrier’s visor. While the ‘Aughts are barely behind us, various all-decade retrospectives indicate the decade’s defining images will be those of Vince Young, Tim Tebow — and the decade’s top team, USC.

It was inevitable that a changing of the guard would occur over the course of this next decade — but who would have thought it would take place within the first two weeks.