The sophomore started three of 12 games last season, and was third on the team interceptions.
Job as backup to starter J.T. Barrett now falls to Dwayne Haskins, with true frosh Tate Martell moving up in the QB pecking order.
Teuhema started 21 games last two seasons for Tigers, will join brother, a former LSU LB, with the Lions.
Mills led the Yellow Jackets in rushing last season, will play for Kansas JUCO in 2017 with eye toward FBS return next season.
Jamari Bozeman started 12 games last season, led Falcons in interceptions with three.