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Whisenhunt has some connections that could help the Titans going forward in free agency, which is good, because the Titans will need to fill quite a few holes via free agency.
Karlos Dansby is one name. With his former defensive coordinator and his former head coach working for the Titans, he's likely to give Tennessee a good, hard look.
Other than that, there is a strong market for running backs and defensive ends. Players like Darren McFadden, Maurice Jones-Drew, Ben Tate, Knowshon Moreno, Brian Orakpo, Greg Hardy, Michael Bennett and Michael Johnson are on the open market.
On the other hand, the market for safeties, especially strong safeties, is pretty weak. Bernard Pollard would be an excellent pickup from the group that's available.
A lot of offensive tackles will be retained by their current teams, but as of right now, a lot of offensive tackles will be entering free agency, so there are options with them as well, it just remains to be seen how many will actually test the free-agent waters.