No foolproof formula

Whether from within or outside, coach hires bring element of risk

Updated: January 20, 2013, 10:14 PM ET
By Greg Katz | WeAreSC
LOS ANGELES -- Intrigue and mystery always envelop both the USC Trojans and the Pac-12 when there is a change in head football coaches, an event that can be predictably unpredictable.

[+] EnlargeJohn Robinson
Stephen Dunn/Getty ImagesJohn Robinson was hired twice by USC, excelling his first go-round before a mediocre second coaching stint.
The latest Pac-12 coaching change occurred with the Oregon Ducks, the acknowledged conference power alongside the Stanford Cardinal. The innovative Chip Kelly has departed Eugene, Ore., for the uncharted waters of the NFL to find out whether his "revolutionary" spread offense can reinvent the Philadelphia Eagles.

Greg Katz | email