"Matt Hasselbeck didn't practice Wednesday and Jake Locker was too sore to throw, leaving third-string quarterback Rusty Smith to run the show.
The rest of the Titans were left wondering who would lead them in Sunday's critical game against the Colts.
"I could just throw a name out there," wide receiver Nate Washington said. "But to be honest, I don't know who it is going to be."
Coach Mike Munchak remained optimistic that Hasselbeck's calf injury, suffered during Sunday's loss to the Saints, would improve enough to allow the 13th-year pro to start."