He was Mario’s boy & was there for 3 seasons.
His 2nd season at Oregon they went 9-4 with losses vs Stanford, WAZZU, Arizona & Utah & that was Kevin Sumlin’s Arizona, a team that finished that year 5-7, Oregon got blown out & only scored 15 points that game.
That one Rose Bowl year was an anomaly, Arroyo parlayed that into an UNLV job, but he’s a ****** play caller.
Go back & watch his season as OC at Southern Miss under Todd Monken, they were absolutely horrendous. But they got significantly better after he left.