We can be critical of Scott Frost and his staff for many things but it appears that they have done a good job building up the linebacker, both inside and outside, rooms from where it all began when they got here.
Here is a quick review of where Nebraska stands as of now at both of these positions.
Inside Linebackers
The names that you already know are Luke Reimer and Nick Henrich and
The names you might not be completely aware of but probably should are Chris Kolarevic, Ernest Hausmann and Eteva Mauga-Clements.