Defensive tackle is another position where there wasn't a lot of turnover from 2012 to 201s.
2012 defensive tackles: Sen'Derrick Marks, Jurrell Casey, Mike Martin, Karl Klug, DaJohn Harris, Zach Clayton
2013 defensive tackles: Sammie Hill, Jurrell Casey, Mike Martin, Karl Klug, Antonio Johnson, DaJohn Harris, Zach Clayton
The advantage here is not huge, but Marks was a non-factor. Hill might not be better than Marks, but he will not be worse.
The rest of the guys are the same with the exception of Mookie Johnson. It was a mistake for the Titans to let him go to the Colts a couple of years ago. He adds some quality depth to the position and another big body in the middle.