I would go even farther with this. It's not just offensive play section, it's the entire offensive philosophy.
When your philosophy/scheme relies on good pass protection and accurate QB passes to the skill players with the running game being secondary in the equation you're going to struggle. Langsdorf's run game strategy is unimaginative, lacks creativity, and is without any emphasis on physicality.
Riley & Langsdorf offense is a pass first offense.
Nebraska wil be lucky to win 7 games this season.