Last Friday, though, it was Barnett's chance to run the Sharks, the offense all his, and he had an impressive debut, even in a loss.
Barnett was 23-for-43 for 289 yards and five touchdowns with one pick and ran for 92 yards on four carries, with an 87-yard touchdown run.
The next night, Barnett was at the Rose Bowl, the first time he'd ever seen a UCLA game in person.
"It was both my first UCLA game and the first game I got to go to as a recruit," said Barnett. "We got to go in locker room before the game and after and saw the players in their environment and saw Coach (Jim) Mora give the speech to the players before the game and that was awesome as well."
After the game, he got to speak with both Noel Mazzone and Taylor Mazzone.
"After the game I talked to both Mazzones about my game and Noel said he watched my game and was really impressed with my throws and the reads that I was making and they'll be at my next game (against Mission Viejo)," said Barnett.
Barnett has worked with the Mazzones a couple of times in the past.
"I went to the UCLA Elite Camp and worked with them there as well as at the Q90 Quarterback Camp," said Barnett. "I like them a lot. They're really good coaches as far as what I've seen and it's been great going with them several times and getting familiar with them. I'm definitely liking UCLA right now."
Barnett said that since the opener, Oregon State, which has had a few players from Santiago in the past, including two current defenders, has contacted him.
Even though it was his second start, knowing it was his offense gave Barnett some jitters before the game.
"I had nerves going into the game, but I was prepared for it," said Barnett. "We didn't get the result we wanted but we're continuing to prepare ourselves for our league. Our non-league schedule is always tough and our coach wants us prepared for everything.
Barnett kept himself busy in the offseason, going to the Nike Camp, the San Jose State Camp at Damien High School and also down south to the Manning Passing Academy.
While Barnett is waiting for his first offer, he's hoping the start of the season will get things rolling for him.
"For two weeks before the game, I watched a lot of film and was just ready to attack it and impress people with my performance," said Barnett. "I hope this gets things going."
Academically, Barnett has a 3.5 and will take the SAT and ACT this fall.