Max Browne worked out the calculations long before he arrived at USC. Cody Kessler and Max Wittek would be third-year sophomore quarterbacks, with three seasons of eligibility remaining, when Browne enrolled in January 2013. Browne correctly surmised only one of the two would be around for the 2014 season. In January, after Kessler started every game and led the Trojans to a 10-4 record, Wittek decided to look for opportunity elsewhere. He is not participating in spring practice and will transfer after graduating in May. "Anyone that really knows football, to be honest, knew that one of those guys was going to get the job and, just the way the business works, one of them was going to have to leave," Browne said Saturday. Wittek's departure elevated Browne to No. 2. This spring he is attempting to challenge Kessler for the starting job, though it remains to be seen whether it becomes a legitimate competition. Kessler passed for 20 touchdowns, with seven interceptions, last season. He finished with a four-touchdown performance in the Trojans' Las Vegas Bowl victory over Fresno State — USC's first opponent in the upcoming season. New Coach Steve Sarkisian has said all jobs are open, including quarterback. And Kessler and Browne appear to have received close to the same number of snaps during the first three spring workouts. Freshman Jalen Greene also has impressed, displaying a quick left-handed release.