The former Oklahoma freshman standout QB, Caleb Williams, is officially headed to USC to reunite with his former head coach, Lincoln Riley. -- 📸: Photo by Brian Bahr/Getty Images -- #calebwilliams #usctrojans #usctrojansfootball #pac12football #big12football #lincolnriley #oklahomasooners #oklahomasoonersfootball #fighton #boomersooner #ncaatransferportal #collegefootball