This should be a low-scoring, rock fight, which will suit the Hawkeyes just fine. PSU's QB Drew Allar's performance in the last game against Illinois is a worry considering that the Iowa defense is very elite. McNamara has had some success in the past against Penn State when he was with Michigan and this big White Out game on Saturday night shouldn't phase him.
Allar is a big QB at 6-5, 240 but being a bigger target isn't always great for the blitzing Iowa linebackers as he isn't very mobile.

Take the points here with IOWA.