OK, so Ken's interview confused the context. Lawrence is still competing at safety not CB. From Winkeljohn's TGW article:
Backing up Gray is junior
Shaun Kagawa, who played in 10 games last season.
Fourth-year junior
Corey Griffin, who played in 11 games with one start, and junior
Lawrence Austin, who played in all 12 games with nine starts at nickel back, are working at strong safety.
Junior
Step Durham, who played in eight games with a start, and junior
Lance Austin, who played in 10 games, are leading the way at the cornerback spots.
“Lance has had a really good camp so far and so has Lawrence for that matter,” Roof said. “Step played a lot at nickel for us and did a nice job. [Third-year sophomore]
Lamont Simmons, behind Step, that’s shaping up to be a real good battle, and [redshirt freshman]
Dorian Walker has changed his body. He did a lot of different jobs in high school and is now trying to hone in on the corner position . . . We’ve got Lawrence and
Corey Griffin competing at strong safety so that’s a good battle.”
So, it looks like at Free Safety AJ/Kagawa is set and that at strong safety Law and Corey are competing.
It looks like CBs are Step/Lamont and Lance/Dorian.