The Titans still have not offered a new contract to running back Chris Johnson. Johnson returned to Nashville on Saturday, but not because his contract negotiations are heating up. "We've discussed parameters. If we can't agree on the parameters, there's no sense making offers," general manager Mike Reinfeldt said. "If your parameters are different ... and if you are talking a different language then you are wasting your time. "We've talked to his agent and will continue to talk to his agent."