Via EDSBS is this picture allegedly of the Nebraska offensive playbook under Bill Callahan:
Good gracious! Who can blame Joe Dailey and NC State's Harrison Beck for fleeing that monstrosity for the relative stupidity simplicity of the offensive schemes under The Coach Who Shall Not Be Named and Chuck Amato. Granted both of those coaches have since moved on, Dailey is now a backup wide receiver and Beck would be playing but is hurt. Still I am sure the Dana Bible playbook is far less daunting than Callahan's if they only had an offensive line.