http://www.footballscoop.com/the-scoop Oregon: Mark Helfrich has formally announced the addition of graduate assistants Nate Costa (a former Ducks quarterback), former Tennessee quality control assistant Joe Bernardi and former Colorado defensive back Cha'pelle Brown, while former player development volunteer Matt Noyer and eight-year NFL veteran Carlos Polk will serve as football interns. These moves complete Oregon's coaching staff. On a similar note, Ryan Walters is back to a full-time staff job. In 2009, he was a student assistant at CU. In 2010, he was a GA at Zona. He got promoted to DB Coach in 2011 when Brown left and Akina backed out of the job. In 2012, he took a step back (sort of) when RichRod replaced the whole staff by taking a GA job with Oklahoma. For 2013, he'll be the Cornerbacks Coach at North Texas.