I addressed which Titan would step up on offense here Which Titan Will Step Up on Offense?. Now lets talk about which Titan will step up on defense. In my opinion, there are more likely candidates on this side of the ball than on offense. I'm not sure what that says about the Titans defense of 2012. Draw your own conclusions. I didn't really see anyone step up, in any major way at least, on the defensive side of the ball. So who are my prime choices? Here they are in alphabetical order.
Honorable Mentions:I already mentioned Michael Griff and I would also add Jordan Babineaux to the list of possible candidates. Obviously, the problem is that safety was the weakest position on the Titans defense last season and neither guy is assured of a role in 2013. Still, both guys have shown leadership qualities.Sen'Derrick Marks is also a guy I think could step up and bring leadership qualities to the team. Unfortunately, he is a free agent and it is unclear whether he will return to the Titans in 2013.
I didn't put Colin McCarthy on this list simply because he has already been a leader on the defense. Unfortunately, his injuries have prevented him from being on the field and that void showed in the Titans defense last season.