Notre Dame lost Blake Barnett a month ago, and now lost out on another four-star quarterback.
Notre Dame's goal was to get an SEC opponent on its future schedule.
It's a goal that's now completed.
Northwestern added it's third in-state verbal commitment to the Class of 2015 with Stevenson three-star ranked senior wide receiver Cameron Green.
A year ago, Jaylon Smith was third on Notre Dame's dog outside linebacker depth chart, with incumbent starter Danny Spond and junior Ben Councell ahead of him.