Helfrich is Nagy's fourth reported coaching hire and the first without ties to Lovie Smith's Bears staff.
He spent the past six seasons coaching Notre Dame's offensive line.
During his four seasons leading Oregon, Helfrich compiled a 37-16 record. He has 20 years of experience at the college level but will coach in the National Football League for the first time. But Oregon steadily declined during the next two seasons, bottoming out with a 4-8 campaign in 2016 that resulted in Helfrich's dismissal.
3 positive factors for Eagles playing Jaguars during London game in 2018
In fact, all of the games ticketed for London look to be, on paper nine months out, solid matchups. This year's new twist is to play games on three consecutive weekends.
After all, Matt Nagy said at his introductory news conference that he will handle the playcalling for the Bears in 2018. But the offense was still formidable, resulting in quarterback Marcus Mariota winning the 2014 Heisman Trophy. Helfrich used the spread offense in college and will bring some of those elements to the Bears' offense.
While Nagy will be calling his own plays in Chicago, Helfrich will still have an integral role to play in turning around a Bears offense which finished 28 in points this past season and has averaged just 18.3 points per game over the last three seasons. Helfrich was instrumental in developing current Tennessee Titans quarterback Marcus Mariota into a Heisman Trophy victor during his time in Oregon.