The change is apparent, Tre Walker insists. The Kansas State defense, much maligned a year ago, is more aggressive, intense and tougher this fall. Guys are getting to the ball -- and making tackles. "Totally different," Walker insists. One of the biggest changes from last year? It's the sophomore in the No. 50 jersey, the one sharing such observations while standing inside Bill Snyder Family Stadium one afternoon in August.

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