I don't think this pick up had anything to do with the progress of Michael Griffin. Even if Griffin was looking like the next great thing already in practices the team could still use another solid and proven CB. From Reinfeldt's comments about Herndon before the signing it sounded like they view Herndon as a nickleback so it's very feasible that Harper and Griffin could be the #1 and 2 CB's with Herndon guarding the slot reciever and providing run support. No matter what happens this signing gives the Titans flexibility and makes them less reliant on Adam Jones.
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