I also think we need a better MLB and SLB. Nate Webster really isn't all that good. I am really hoping a good LB or two drops like perhaps Cushing Laurinaitis or Maualuga.
Personally, I like Laurinaitis in this scheme. He has good instincts, can cover well and manages to keep his helmet on... pretty much making him the AntiWebster.
As for SLB, Winborn is a great athlete but has zero smarts / discipline and Boss Bailey is a natural fit for the IR. I'd like to see Woodyard take over this spot - I like the way he plays and it would be a damn shame (and a waste of talent) for him to return to his role as backup WLB.