USC names Clay Helton permanent head coachSI senior writer Andy Staples breaks down USC's decision to hire Clay Helton as its head coach.SI Staff|Share on FacebookShare on XAdd us as a preferred sourceSI senior writer Andy Staples breaks down USC's decision to hire Clay Helton as its head coach.Add us as a preferred source on GoogleFollowPublished Nov 30, 2015 | Modified Nov 30, 2015SI STAFFShare on FacebookShare on XHome/College