He is only going to help that LB corp, thats doing a good job already. Even if he doesn't start, he will still get plenty of PT and just adds to the depth. I would love for him to be the little run stopper he was a few years back, and he and Ralondo make a great duo back there.
I think the whole "their LBs are young and questionable" goes right out the window when Hall gets into the mix full time.