I believe I've mentioned it briefly on here, but I'm also writing for the stats-oriented website Football Outsiders. Among other things, I'm writing the chapters in their 2010 book on the Titans and Jaguars, and I'm sure I'll have more to say about that further on in the writing process. I'm also responsible for writing occasional capsules about where the team stands as part of FO's Four Downs series. The first edition of that for the AFC South is available for your reading pleasure. The main offseason question bit of that, which was originally published on ESPN Insider, deals with filling in the defensive holes, particularly at DE, OLB, and CB. As to who the Titans could sign, I mention one name that I don't think I've seen anybody else mention that I think potentially makes a great deal of sense, and that's Pisa Tinoisamoa.
If you look at the list of the OLB free agent class, you notice that pretty much everybody who's decent is a restricted free agent and thus will require draft pick compensation to sign. The top unrestricted guy is Karlos Dansby, but his price is likely to be much too high for the Titans and I'm not even sure he'd be a good fit schematically. Beyond that, though, Tinoisamoa's was a name that stood out for me. He spent 2009 with the Bears after the Rams cut him in May of that year after acquiring James Laurinaitis and Will Witherspoon, primarily because of an affinity for former Rams DC Lovie Smith. The Bears and Lovie Smith, being the Bears and Lovie Smith, and already having Lance Briggs at weakside linebacker and Brian Urlacher in the middle, played him over Hunter Hillenmeyer at strongside linebacker. But, at 6'1", 230#, Tinoisamoa is much more of a weakside linebacker who plays in space than someone who plays over the tight end and fights through blocks.