Here is the article in full:
http://journalstar.com/sports/huskers/life-in-the-red/husker-strength-coach-duval-talks-combining-science-and-art-of/article_86336a7b-92a5-59b3-be35-1f93c10aa711.html
That conversation was in response to a question about Lincoln East graduate and NU redshirt freshman Chris Walker (6-foot-8, 275 pounds), who is reportedly moving from offensive line to defensive line. The metrics can help with such decisions before position coaches and head coach Scott Frost make a final decision with the player.
“He cannot hold the mass you’re talking about on the O-line unless we start giving him massive amounts of fat allowance. Fat doesn’t speed you up and it’s harder to slow down, right? It’s not an engine, it’s just adding mass to the car, which your engine has to work harder to move,” Duval said. “That’s Chris in a nutshell.”