Urlacher is two steps slower than he used to be.
Not many 4-3 MLB I would take over Keek right now. Hell, Urlacher is the only one I can come up with off the top of my head.
With TD playing very well, and steady eddy Anderson. We very well could have one of the best 4-3 LB corp in the league.
Get this D some help at S, and it can be good enough to get us where we want to go.
Still good, but not otherworldly like he used to be.
I wouldn't take anyone over Kuechly based on age. Based on ability/production I'd probably take Willis. It's a short, short list though.