Jim Wyatt lists all the veterans that are now on the spot because of players the Titans drafted. I agree with everyone he put on this list, and arguably needs to put Justin Hunter on notice because of DGB and also because of Tre McBride who should push Wright and Justin. DaQuan Jones is a guy I'm really excited to see his development this year. I think he can be a above average player.
Here is the list of UDFAs the Titans have signed. Prewitt, Riggs, Vincent, Spain, Lott, and Matias are the guys to look out for to make the roster. This is about as good of a UDFA class as they've ever had.
Paul Kuharksy has a note on each of the UDFAs the Titans signed.
Hunter and the Titans receivers should improve drastically with better QB play. 40.5% of the passes to him were uncatchable per FO. That is atrocious, and again, should improve with Marcus at the helm.