Pac-12 preview: Chip Kelly’s challenge is to make UCLA distinctive in his return to the conference

This year's arrival of Arizona's Kevin Sumlin, Arizona State's Herm Edwards and UCLA's Chip Kelly in the Pac-12 South marks the second time those schools have made coincidental coaching changes since Utah joined the conference.Ute coach Kyle Whittingham is impressed with all of the newcomers. Yet when he was asked during the Pac-12 Media Day about competing against Kelly's offense, Whittingham changed the subject. “It still boils down to players,” he said. “Players are what it'