IOWA CITY, Iowa (AP) — Nearly everyone assumed that Iowa would lean on senior quarterback James Vandenberg until the rest of the offense found its footing under new coordinator Greg Davis.  But the Hawkeyes’ passing game is a major concern with Iowa State (1-0) visiting Kinnick Stadium on Saturday. Iowa (1-0) survived a fierce test from Northern Illinois last weekend, beating the Huskies 18-17 on running back Damon Bullock’s 23-yard touchdown late in the fourth quarter. Vandenberg threw for just 129 yards — averaging less than four yards an attempt — and was sacked six times. Though Vandenberg completed 21 of his 33 tries, none of them went for scores.