Linebackers

It seems to me we have a bunch of linebackers coming back: Brian Bischoff, D.D. Johnson, D.D. Lee, Jarrian James, Jamar Bey, Cole Horton, Reggie Carrington, Luke Pappas. And we have three coming in, in Zach Hall, Cory Muse and Avery Cleveland.
My question is, as fast as Cleveland and Muse are, could either of them drop back to the secondary and be a big-hitting safety?
My question is, as fast as Cleveland and Muse are, could either of them drop back to the secondary and be a big-hitting safety?