Even after Iowa made big-time changes on offense this season, results have not been great. Saturday’s performance against Ohio State was certainly a disappointing one, only putting seven points up on the Buckeyes. The lone touchdown of the night came in garbage time as Kirk Ferentz already watched his team go down by 35 points. This has led to questions about a potential quarterback change. Cade McNamara is currently running Iowa’s new-look offense but Northwestern transfer Brendan Sullivan is currently backing him up. Ferentz says the coaching staff is evaluating things on a weekly basis and …