Urban Meyer prepares to lead the buckeyes out on to the field prior to the Ohio State-Penn State game on Oct. 28. Ohio State won 39-38. Credit: Jack Westerheide | Photo EditorNo. 3 Ohio State (7-1, 5-0 Big Ten) seemed to follow the mantra of “If it ain’t broke, don’t fix it,” as the Buckeyes released their depth chart Tuesday prior to their game Saturday against Iowa without any changes following Saturday’s 39-38 comeback win against No. 7 Penn State.Right guard Demetrius Knox, who made his second start in a row Saturday, is once again listed as a starter. Parris Campbell, who head coach Urban Meyer said is questionable after being “dinged up” Saturday, remains a co-starter at H-back.Though there are no changes to Ohio State’s depth chart, Meyer said there will be personnel changes on the Buckeyes’ kickoff unit. Kickers Sean Nuernberger and Blake Haubeil remain listed as co-kickoff specialists.Ohio State and the Hawkeyes will kick off at 3:30 p.m. Saturday in Iowa City, Iowa.