Sarkisian played a game of three-card Monte with his offensive line in the spring, shifting players into different positions and interjecting new contributors in an effort to find the right combination.
Front-five stalwart Max Tuerk played on the interior and outside of the line his first two years in the program. In year three, Tuerk looks primed to take over for NFL early departure Marcus Martin at center.
"When Max's number is called, whenever that is, he's going to play great football for us," Sarkisian told Gary Klein of the Los Angeles Times.
Fellow veteran Aundrey Walker spent the spring rehabilitating an injury, but will return as one of the unit's leaders. Chad Wheeler took his lumps at tackle in 2013, though the experience should prove invaluable for the coming campaign.
There is a distinct possibility USC will rely heavily on two true freshmen. Toa Lobendahn worked his way into the first-string line during spring workouts, while highly touted prospect Damien Mama is immediately the biggest body USC has at 6'4", 370 pounds.
The newcomers are hardly the only unproven commodities who will be vital to the line's progression. Zach Banner, a 6'9", 345-pound redshirt sophomore, must take a significant step forward in his development this season.
Why They're Ranked Here
The offensive line is USC's most mysterious unit. Tuerk is a standout and Walker's experience will be invaluable, but there is plenty of uncertainty, both in terms of depth and along the starting front.
Lobendahn's quick ascent up the depth chart in spring is a testament to his potential, but also a reminder that this unit was a weakness for the Trojans a season ago. Certainly losing Martin set the offensive line back in the offseason, but the Trojans have lots of talent set to emerge.