"So they'll have to do the prep or (junior college) route depending upon what they need to do to get themselves eligible," N.C. State's coach said.
Beasley is a 6-2, 225-pound linebacker from Milton, Fla. He was ranked the No. 36 strong side linebacker in the country by Scout.com and was thought to have a chance to contribute as a freshman.
Palmer is a 5-10, 165-pound running back/cornerback from Pittsboro. Scout.com had him as the No. 41 cornerback in the country. Finally, Everett is a 6-4, 300-pound defensive lineman from Bushnell, Fla., who was the No. 28 defensive tackle in the country.
O'Brien also said that incoming freshman Terrell Manning will be redshirted this year after undergoing knee surgery in January.
He deferred all other talk about injuries and the Wolfpack's roster until practice starts in a little over a week.
Otherwise, there wasn't a whole lot of new information from O'Brien on the day that his Wolfpack team was picked to finish sixth in the ACC's Atlantic Division.
With the challenging atmosphere N.C. State will face in Columbia, some might think that incumbent Daniel Evans has a built-in advantage, but O'Brien said that's not the case.
"I know it's a tough place to play and there's a lot of excitement, but if it's got to be a freshman, he's going to have to play in that situation anyway whether it be Russell Wilson or Mike Glennon," said O'Brien. "So you might as well as start it right away and get in the atmosphere and go after them."
"He doesn't have to [look over] his shoulder at all," said O'Brien. "He did a tremendous job the last six games of the year. He did a great job at spring practice... he was the only healthy tailback for a while there.
"He's going to have to come out of the game, he's going to have to get a rest, and other people are going to play. He's proven that he can be a ball carrier, he's proven that he can pass protect and he's proven that he can catch the football."
"From the first day we came back in January, there's been a little something about the conditioning program, the workout program, you went to spring practice, you know you're going to be on national TV in the first game of the year," O'Brien said. "I think the intensity, I think the concentration picked up... it certainly has through the summer because they know they're going to have to be really good early."