Lyons made 30 tackles in 13 games in the 2014 season for Stanford.
After receiving letters of intent from several defensive linemen, Mark Dantonio expressed confidence that the unit will remain strong.
Eight of the 10 assistant coaches, including director of strength and conditioning Kevin Tolbert, have NFL experience.
The University of Michigan did not immediately return a call seeking confirmation that O’Korn has officially joined the team.
“I went for a run this afternoon because I wasn’t worried about anything,” Dantonio added. “No drama. It was nice.”
“Everybody starts the same,” Harbaugh said. “Everybody’s got that first chance to make a great first impression.”
Before linebacker Roquan Smith announced his college choice Wednesday, many suspected it would definitely not be the University of Michigan.
“Also, as a coach, there’s always things that you can learn,” Hoke added, “and that’s one of the things that I really want to do.”
By the end of the day, Jim Harbaugh will have finalized his first class of recruits as the new head coach of Michigan.
Coming off another impressive season, Michigan State’s 2015 class of recruits ranks among the best in the nation.