Oklahoma quarterback Jackson Arnold has been on a journey this season. After beginning the year as starter, Arnold was benched in favor of Michael Hawkins in Week 4 against Tennessee after committing three turnovers. Hawkins went on to start the next three games, including Saturday against South Carolina. But after Hawkins committed a fumble and an interception to start the game, the Sooners called upon Arnold to turn things around. CLICK HERE to go to PrizePicks and use code ON3 to receive a guaranteed $50 once you play $5 in lineups! OU was already down 21-0 when Arnold entered and went on t…