Husker head coach Bo Pelini isn’t one to spill many major details about his depth chart in the week leading up to his team’s season opener. But yesterday at his weekly press conference, he did let slip that senior Justin Jackson has the inside track on the starting center job. Jackson, a walk-on from Norris High School, has apparently beaten out Cole Pensick and Mark Pelini for the starting nod. Jackson’s presence would mean that three of the five starting lineman for the Huskers would be former walk-ons. Seung-Hoon Choi and Spencer Long have already secured both guard positions. Pelini also says he hasn’t yet decided who his backup quarterback will be, as Brion Carnes and true freshman Tommy Armstrong have both impressed.