Titans' quarterback Vince Young will be a game-time decision Sunday against Houston after he took one series of snaps with the scout team Friday. Young had injured his right quadriceps against Tampa Bay and had not practiced all week. He began Friday's workout by dropping back and throwing the ball, then ran the Titans' scout team offense during a red zone drill against the starting defense. Young was not available to the media on Friday, but Titans' coach Jeff Fisher said the quarterback felt better and would still be a game-time decision. "He was limited. He participated in warmups, threw the ball and participated in limited practice," Fisher said. "That would imply that he's improving. He will still be a game-time decision, but it was encouraging to see him on the field today."