Will Levis set a franchise record when he threw his fourth pick-6 of the season during Sunday's loss to the Cincinnati Bengals. It was the last thing he did in that game. Mason Rudolph replaced him for the final four possessions of the 37-27 defeat, and afterward coach Brian Callahan did not offer the assurances that Levis is -- and will be -- the Titans' starter going forward. The decision raises new questions about Levis' long-term future with the Titans creates the impression that Callahan believes his days might be numbered as well.