There are good arguments for keeping another LB just like there are good arguments for keeping another guy on the D line. You could make a case for another O lineman, defensive back, or at almost any position on the team. If we could also predict where that extra depth would be needed then NFL teams would be lined up deep to hire us.
No way of knowing where you need that extra depth. I wish I knew. The beer would be on me Sunday if I had (and could do) that job.
A wise man once said "...well at this point it's all been hashed out and you either see it or don't. Hoping for a win next week" - HTown2ATX