I know there is a lot of talk that we need speed at LB and we shouldn't worry about size. I too want a lot of speed at LB's. However, can we stop using LB's from 20 years ago as examples today? The opposing offensive line is so much bigger in today's football.
1995 Nebraska football roster: Throwing out obvious walk-on players, average o-lineman weight 275 lbs, only one 300 pounder (Adam Julch)
http://www.huskermax.com/rosters/1995.html
2015 spring Wisconsin football roster: Average o-lineman weight 309 lbs, 14 of 16 O-linemen on roster over 300 lbs
http://www.uwbadgers.com/sports/m-footbl/mtt/wis-m-footbl-mtt.html
I used Wisconsin because they are generally thought of as the best o-line in the conference, just like the 1995 NU team was.