Spread out or spread too thin?

The purebred pro-style offense isn't extinct in college football, but it could appear soon on the endangered species list. The mutt population, meanwhile, is soaring.

"I don't think anybody is really running a pure form of anything anymore," Penn State coach James Franklin said. "Almost everybody has some form of West Coast philosophies. Even people who don't run a traditional spread run spread concepts. Football's become a melting pot of philosophies."

Some of the sport's most traditional, pro-style teams -- Wisconsin, USC, Iowa -- will look different this season.

Wisconsin will sprinkle some spread concepts into its ground-and-pound attack. USC wants to run at least 80 plays a game while maintaining a pro-style identity under Steve Sarkisian.

But the debate among coaches is whether offenses can effectively use tempo if they're not married to it.