The early enrollees include Claremont (Calif.) offensive lineman Jordan Austin, Gardena (Calif.) Serra quarterback Jalen Greene, Boise (Id.) Timberline defensive player Don Hill, and La Habra (Calif.) offensive lineman Toa Lobendahn.
Lobendahn is a Scout four-star recruit. Austin, Greene, and Hill are all three-star prospects.
USC's four midyear scholarships were "use them or lose them" rides leftover from the Trojans' 2013 recruiting class. When USC athletic director Pat Haden hired coach Steve Sarkisian on Dec. 2, he said filling the four midyear scholarships would be a top priority of Sarkisian.
Lobendahn and Austin committed to USC when the Trojans were led by former coach Lane Kiffin. Greene and Hill committed to Sarkisian.
Lobendahn, a four-star offensive lineman, could be called upon to make an immediate impact on the Trojans' offensive line.
USC returns starting left tackle Chad Wheeler and left guard Max Tuerk. Right guard Aundrey Walker went down with a broken ankle in the Trojans' regular season finale against UCLA; he has yet to confirm if he'll return to USC for his final season of eligibility.
At 6-foot-3 290-pounds, Scout projects Lobendahn as a guard for the Trojans.
Hill was a long time Washington commit when Steve Sarkisian was in Seattle. But with Sarkisian's move to Southern California, it came as little surprise when Hill reopened his recruitment.
The three-star defensive end committed to USC after taking an official visit on Dec. 14.
Hill is will play defensive end-outside linebacker in defensive coordinator Justin Wilcox's defense.
He could challenge for immediate time with the graduation of Devon Kennard.
There might not be another player as excited to become a Trojan as Austin. He picked up a USC scholarship offer from Kiffin's staff during Rising Stars Camp over the summer and committed later the same evening.
Austin is a three-star recruit who will add depth to the offensive line. At 6-foot-5 and 275-pounds, he isn't expected to make an immediate impact in games when the 2014 season begins, but will most certainly find a role on a roster lacking depth.
Greene's recruitment mirrored the coaching carousel when the season ended. First a Boise State commit, Greene flipped his commitment to Washington when Chris Petersen left for the Huskies' position.
The three-star quarterback then picked up a USC offer from Sarkisian and once again changed his commitment – this time for good and to the Trojans.
Greene said at the time USC was his dream school and he couldn't pass up the opportunity.
Greene, 6-foot-3 195-pounds, comes to USC on the heels of 2013 five-star quarterback Max Browne who redshirted his freshman season.
Sarkisian will implement at USC what he calls his pro-style uptempo offense. It remains to be seen how the Trojans' current stable of quarterbacks, Browne, Max Wittek, and returning starter Cody Kessler (though the competition will be reopened this spring) will fit into the system.
It is rumored that if Wittek doesn't win the position he will transfer from the program.
Did Sarkisian bring in Greene because he's more of a dual-threat signal caller? Could be. Only spring will tell.